Skip Nav Destination
Close Modal
Update search
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
Filter
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
Central Africa
-
Congo Democratic Republic (1)
-
-
East Africa
-
Lake Malawi (1)
-
Zambia (1)
-
-
East African Lakes
-
Lake Malawi (1)
-
-
Southern Africa
-
South Africa
-
Bushveld Complex (1)
-
Transvaal region (1)
-
Witwatersrand (1)
-
-
Swaziland (1)
-
-
-
Asia
-
Central Asia
-
Kazakhstan
-
Kokchetav Kazakhstan
-
Kokchetav Massif (1)
-
-
-
-
Kyrgyzstan
-
Issyk-kul Lake (1)
-
-
-
Australasia
-
Australia
-
Western Australia
-
Eastern Goldfields (1)
-
-
-
-
Black Hills (1)
-
Canada
-
Eastern Canada
-
Belcher Islands (1)
-
James Bay (1)
-
Newfoundland and Labrador
-
Labrador (1)
-
Newfoundland (1)
-
-
Ontario
-
Algoma District Ontario
-
Mamainse Point (8)
-
Sault Sainte Marie Ontario (2)
-
Wawa Ontario (16)
-
-
Batchawana Bay (4)
-
Coldwell Complex (13)
-
Eye-Dashwa Lakes Pluton (8)
-
Hemlo Deposit (13)
-
Kenora District Ontario (1)
-
Michipicoten Island (2)
-
Rainy River District Ontario
-
Atikokan Ontario (12)
-
-
Sudbury Basin (3)
-
Sudbury igneous complex (1)
-
Sudbury Ontario (1)
-
Sudbury Structure (2)
-
Thunder Bay (4)
-
Thunder Bay District Ontario
-
Manitouwadge Ontario (3)
-
Northern Light Lake (1)
-
Thunder Bay Ontario (10)
-
-
-
Quebec (2)
-
-
Nunavut
-
Belcher Islands (1)
-
-
Western Canada
-
Manitoba
-
Lac du Bonnet Batholith (2)
-
Tanco Pegmatite (1)
-
-
Northwest Territories
-
Ekati Mine (1)
-
-
Yukon Territory (1)
-
-
-
Commonwealth of Independent States
-
Kazakhstan
-
Kokchetav Kazakhstan
-
Kokchetav Massif (1)
-
-
-
Kyrgyzstan
-
Issyk-kul Lake (1)
-
-
-
Europe
-
Alps
-
Central Alps
-
Bernese Alps (1)
-
-
-
Central Europe
-
Austria (1)
-
Erzgebirge (1)
-
Germany (1)
-
Poland (1)
-
Switzerland
-
Bernese Alps (1)
-
-
-
Southern Europe
-
Iberian Peninsula
-
Portugal (1)
-
-
-
Western Europe
-
United Kingdom
-
Great Britain
-
Scotland
-
Edinburgh Scotland (1)
-
Midlothian Scotland (1)
-
-
-
-
-
-
Lake Nipissing (1)
-
Mexico
-
Sierra Madre Oriental (1)
-
-
North America
-
Canadian Shield
-
Grenville Province (5)
-
Slave Province (1)
-
Southern Province (7)
-
Superior Province
-
Abitibi Belt (7)
-
Kapuskasing Zone (7)
-
Michipicoten Belt (10)
-
Quetico Belt (14)
-
Wabigoon Belt (7)
-
Wawa Belt (34)
-
-
-
Great Lakes
-
Lake Michigan (3)
-
Lake Superior (89)
-
-
Great Lakes region (58)
-
Grenville Front (3)
-
Keweenawan Rift (46)
-
Lake Superior region (25)
-
Rainy River (2)
-
Rocky Mountains (1)
-
Saganaga Lake (1)
-
-
Rainy Lake (1)
-
Sturgeon Lake (1)
-
United States
-
Alaska (1)
-
Iowa (1)
-
Kansas (1)
-
Michigan
-
Michigan Lower Peninsula
-
Cheboygan County Michigan (1)
-
Emmet County Michigan (2)
-
Lake County Michigan (1)
-
Washtenaw County Michigan (1)
-
-
Michigan Upper Peninsula
-
Alger County Michigan (3)
-
Baraga County Michigan (5)
-
Chippewa County Michigan
-
Sault Sainte Marie Michigan (1)
-
-
Dickinson County Michigan (1)
-
Gogebic County Michigan (8)
-
Houghton County Michigan (11)
-
Iron County Michigan (1)
-
Keweenaw County Michigan
-
Isle Royale National Park (1)
-
-
Keweenaw Peninsula (28)
-
Luce County Michigan (1)
-
Marquette County Michigan
-
Marquette Michigan (3)
-
Marquette Range (4)
-
-
Ontonagon County Michigan
-
White Pine Michigan (14)
-
-
-
-
Midcontinent (8)
-
Midcontinent geophysical anomaly (2)
-
Midwest (1)
-
Minnesota
-
Carlton County Minnesota (1)
-
Cook County Minnesota (15)
-
Dakota County Minnesota (1)
-
Duluth Complex (32)
-
Lake County Minnesota (23)
-
Mesabi Range (5)
-
Saint Louis County Minnesota
-
Duluth Minnesota (8)
-
Ely Minnesota (4)
-
Partridge River Intrusion (4)
-
-
Vermilion Range (3)
-
-
Missouri
-
Viburnum Trend (1)
-
-
Montana (1)
-
Nebraska (1)
-
Oregon
-
Klamath County Oregon
-
Mount Mazama (1)
-
-
-
South Dakota (1)
-
Wisconsin
-
Ashland County Wisconsin (4)
-
Bayfield County Wisconsin (4)
-
Douglas County Wisconsin (2)
-
Iron County Wisconsin (2)
-
Milwaukee County Wisconsin
-
Milwaukee Wisconsin (1)
-
-
Sawyer County Wisconsin (1)
-
-
-
White Pine Mine (16)
-
-
commodities
-
barite deposits (1)
-
bitumens (3)
-
brines (4)
-
diamond deposits (3)
-
metal ores
-
base metals (3)
-
cadmium ores (1)
-
chromite ores (1)
-
copper ores (64)
-
gold ores (26)
-
iron ores (21)
-
lead ores (2)
-
lead-zinc deposits (3)
-
lithium ores (1)
-
manganese ores (1)
-
molybdenum ores (2)
-
nickel ores (23)
-
niobium ores (1)
-
palladium ores (8)
-
platinum ores (13)
-
polymetallic ores (3)
-
pyrite ores (1)
-
rare earth deposits
-
cerium ores (1)
-
-
silver ores (5)
-
tantalum ores (1)
-
tin ores (1)
-
uranium ores (1)
-
zinc ores (8)
-
-
mineral deposits, genesis (87)
-
mineral exploration (18)
-
mineral resources (1)
-
petroleum (4)
-
talc deposits (1)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (5)
-
C-14 (8)
-
-
chemical ratios (2)
-
hydrogen
-
D/H (2)
-
-
isotope ratios (26)
-
isotopes
-
radioactive isotopes
-
Am-241 (1)
-
Be-10 (1)
-
C-14 (8)
-
Cs-137 (1)
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (2)
-
Pb-208/Pb-204 (2)
-
Rb-87/Sr-86 (1)
-
Sm-147/Nd-144 (1)
-
Sr-90 (1)
-
U-238/Th-230 (1)
-
-
stable isotopes
-
C-13/C-12 (5)
-
D/H (2)
-
Nd-144/Nd-143 (9)
-
O-18/O-16 (10)
-
Os-188/Os-187 (1)
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (2)
-
Pb-208/Pb-204 (2)
-
Rb-87/Sr-86 (1)
-
S-33 (1)
-
S-33/S-32 (2)
-
S-34/S-32 (15)
-
S-36 (2)
-
Sm-147/Nd-144 (1)
-
Sr-87/Sr-86 (7)
-
-
-
metals
-
actinides
-
americium
-
Am-241 (1)
-
-
thorium
-
U-238/Th-230 (1)
-
-
uranium
-
U-238/Th-230 (1)
-
-
-
alkali metals
-
cesium
-
Cs-137 (1)
-
-
potassium (1)
-
rubidium
-
Rb-87/Sr-86 (1)
-
-
sodium (1)
-
-
alkaline earth metals
-
barium (1)
-
beryllium
-
Be-10 (1)
-
-
calcium (1)
-
magnesium (2)
-
strontium
-
Rb-87/Sr-86 (1)
-
Sr-87/Sr-86 (7)
-
Sr-90 (1)
-
-
-
antimony (3)
-
arsenic (1)
-
chromium (2)
-
cobalt (1)
-
copper (24)
-
gold (3)
-
hafnium (1)
-
iron
-
ferric iron (1)
-
-
lead
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (2)
-
Pb-208/Pb-204 (2)
-
-
manganese (1)
-
mercury (2)
-
nickel (4)
-
niobium (2)
-
platinum group
-
iridium (2)
-
osmium
-
Os-188/Os-187 (1)
-
-
palladium (1)
-
palladium ores (8)
-
platinum ores (13)
-
rhodium (1)
-
-
rare earths
-
cerium (1)
-
europium (1)
-
lanthanum (1)
-
neodymium
-
Nd-144/Nd-143 (9)
-
Sm-147/Nd-144 (1)
-
-
promethium (1)
-
samarium
-
Sm-147/Nd-144 (1)
-
-
-
silver (4)
-
technetium (1)
-
thallium (1)
-
titanium (1)
-
tungsten (1)
-
vanadium (1)
-
zinc (2)
-
zirconium (2)
-
-
nitrogen (1)
-
oxygen
-
O-18/O-16 (10)
-
-
selenium (1)
-
sulfur
-
S-33 (1)
-
S-33/S-32 (2)
-
S-34/S-32 (15)
-
S-36 (2)
-
-
trace metals (1)
-
-
fossils
-
Archaea (1)
-
Chordata
-
Vertebrata
-
Pisces (1)
-
-
-
cyanobacteria (1)
-
eukaryotes (2)
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Branchiopoda
-
Cladocera (1)
-
-
-
Insecta (2)
-
-
-
-
microfossils
-
problematic microfossils (1)
-
-
palynomorphs
-
acritarchs (1)
-
miospores
-
pollen (1)
-
-
-
Plantae
-
algae
-
diatoms (1)
-
-
-
problematic fossils
-
problematic microfossils (1)
-
-
-
geochronology methods
-
(U-Th)/He (1)
-
Ar/Ar (4)
-
He/He (1)
-
K/Ar (4)
-
optically stimulated luminescence (2)
-
paleomagnetism (43)
-
Pb/Pb (1)
-
Rb/Sr (13)
-
Re/Os (3)
-
Sm/Nd (3)
-
thermochronology (1)
-
U/Pb (27)
-
U/Th/Pb (1)
-
uranium disequilibrium (1)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Holocene
-
lower Holocene (3)
-
upper Holocene (1)
-
-
Pleistocene
-
Lake Agassiz (3)
-
upper Pleistocene
-
Weichselian
-
upper Weichselian
-
Younger Dryas (3)
-
-
-
Wisconsinan (1)
-
-
-
upper Quaternary (5)
-
-
Tertiary
-
Neogene
-
Miocene (1)
-
-
-
-
Laurentide ice sheet (4)
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Albian (1)
-
Aptian (1)
-
-
Middle Cretaceous (1)
-
Upper Cretaceous
-
Cenomanian (1)
-
-
-
-
Paleozoic
-
Cambrian (3)
-
lower Paleozoic (2)
-
Ordovician (1)
-
-
Phanerozoic (3)
-
Precambrian
-
Animikie Group (5)
-
Archean
-
Mesoarchean (1)
-
Neoarchean (15)
-
-
Biwabik Iron Formation (3)
-
Central Rand Group (1)
-
Gunflint Iron Formation (11)
-
middle Precambrian (3)
-
Nonesuch Shale (14)
-
North Shore Volcanics (8)
-
Osler Series (2)
-
Stillwater Complex (1)
-
upper Precambrian
-
Proterozoic
-
Baraga Group (3)
-
Great Oxidation Event (1)
-
Huronian
-
Onaping Formation (1)
-
-
Keweenawan
-
Copper Harbor Conglomerate (11)
-
Portage Lake Lava Series (9)
-
-
Lewisian (1)
-
Mesoproterozoic
-
Freda Sandstone (5)
-
Helikian
-
Neohelikian (2)
-
-
Stenian (3)
-
-
Negaunee Iron Formation (5)
-
Neoproterozoic (11)
-
Oronto Group (8)
-
Paleoproterozoic
-
Aphebian (3)
-
Hemlock Formation (1)
-
Marquette Range Supergroup (3)
-
Michigamme Formation (2)
-
Thomson Formation (1)
-
Virginia Formation (10)
-
-
-
-
Witwatersrand Supergroup (1)
-
-
-
igneous rocks
-
extrusive rocks (1)
-
igneous rocks
-
carbonatites (3)
-
feldspathoid rocks (1)
-
granophyre (2)
-
hypabyssal rocks (1)
-
kimberlite (1)
-
picrite (2)
-
plutonic rocks
-
anorthosite (4)
-
diabase (5)
-
diorites
-
tonalite (3)
-
trondhjemite (4)
-
-
gabbros
-
troctolite (9)
-
-
granites
-
aplite (2)
-
-
granodiorites (3)
-
ijolite (1)
-
lamprophyres
-
monchiquite (1)
-
spessartite (1)
-
-
monzonites (1)
-
pegmatite (4)
-
quartz monzonite (2)
-
syenites
-
nepheline syenite (1)
-
-
ultramafics
-
peridotites
-
harzburgite (1)
-
-
pyroxenite (1)
-
-
-
porphyry (2)
-
volcanic rocks
-
adakites (1)
-
andesites (3)
-
basalts
-
alkali basalts (1)
-
flood basalts (1)
-
olivine basalt (1)
-
olivine tholeiite (2)
-
shoshonite (1)
-
tholeiite (1)
-
-
glasses (1)
-
komatiite (4)
-
pyroclastics
-
tuff (1)
-
-
quartz latite (1)
-
rhyolites
-
quartz porphyry (1)
-
-
-
-
wehrlite (1)
-
-
metamorphic rocks
-
metamorphic rocks
-
amphibolites (1)
-
eclogite (1)
-
gneisses
-
granite gneiss (1)
-
-
granulites (2)
-
hornfels (3)
-
impactites
-
impact breccia (2)
-
-
metaigneous rocks
-
metabasalt (1)
-
metabasite (1)
-
metagranite (2)
-
metakomatiite (1)
-
metatuff (1)
-
-
metaplutonic rocks (4)
-
metasedimentary rocks
-
metaconglomerate (2)
-
metagraywacke (1)
-
metapelite (1)
-
-
metasomatic rocks
-
skarn (2)
-
tactite (1)
-
-
metavolcanic rocks (19)
-
migmatites (3)
-
mylonites
-
pseudotachylite (1)
-
-
quartzites (1)
-
schists
-
greenstone (4)
-
-
slates (1)
-
-
-
minerals
-
antimonides (1)
-
arsenates (1)
-
arsenides
-
arsenopyrite (1)
-
cobaltite (1)
-
gersdorffite (1)
-
lollingite (1)
-
maucherite (1)
-
nickeline (2)
-
pararammelsbergite (1)
-
rammelsbergite (2)
-
safflorite (1)
-
sperrylite (2)
-
-
bismuthides
-
michenerite (1)
-
-
carbonates
-
aragonite (1)
-
bastnaesite (1)
-
calcite (5)
-
dolomite (2)
-
magnesian calcite (1)
-
siderite (4)
-
-
copper minerals (2)
-
halides
-
chlorides
-
atacamite (1)
-
halite (1)
-
pyromorphite (1)
-
sylvite (1)
-
-
fluorides
-
bastnaesite (1)
-
-
-
minerals (23)
-
native elements
-
diamond (3)
-
graphite (1)
-
-
oxides
-
baddeleyite (3)
-
cassiterite (1)
-
chrome spinel (1)
-
goethite (3)
-
hematite (12)
-
hydroxides (1)
-
ilmenite (2)
-
iron oxides (1)
-
magnesium oxides (1)
-
magnetite (6)
-
nigerite (1)
-
niobates
-
columbite (1)
-
pyrochlore (1)
-
-
perovskite (1)
-
rutile (1)
-
specularite (2)
-
spinel (2)
-
ulvospinel (1)
-
-
phosphates
-
apatite (3)
-
monazite (2)
-
pyromorphite (1)
-
xenotime (2)
-
-
platinum minerals (2)
-
silicates
-
aluminosilicates (1)
-
chain silicates
-
amphibole group
-
clinoamphibole
-
actinolite (1)
-
arfvedsonite (1)
-
cummingtonite (2)
-
hornblende (1)
-
-
-
prehnite (1)
-
pyroxene group
-
clinopyroxene
-
pigeonite (1)
-
-
orthopyroxene (2)
-
-
xonotlite (1)
-
-
framework silicates
-
feldspar group
-
alkali feldspar
-
adularia (1)
-
K-feldspar (2)
-
-
plagioclase
-
albite (2)
-
anorthite (1)
-
-
-
silica minerals
-
quartz (3)
-
-
-
iron silicates (1)
-
orthosilicates
-
nesosilicates
-
andalusite (1)
-
garnet group
-
pyrope (2)
-
-
olivine group
-
forsterite (1)
-
olivine (3)
-
-
sillimanite (1)
-
titanite group
-
titanite (1)
-
-
zircon group
-
zircon (19)
-
-
-
sorosilicates
-
epidote group
-
epidote (3)
-
-
pumpellyite group
-
pumpellyite (2)
-
-
-
-
ring silicates
-
cordierite (2)
-
-
sheet silicates
-
chlorite group
-
chamosite (2)
-
chlorite (4)
-
sudoite (1)
-
-
clay minerals
-
kaolinite (1)
-
smectite (4)
-
-
illite (5)
-
mica group
-
biotite (3)
-
celadonite (2)
-
muscovite (4)
-
phlogopite (3)
-
-
palygorskite (1)
-
serpentine group
-
serpentine (1)
-
-
stilpnomelane (1)
-
talc (1)
-
-
-
sulfates
-
barite (1)
-
gypsum (2)
-
-
sulfides
-
arsenopyrite (1)
-
bornite (1)
-
chalcocite (5)
-
chalcopyrite (2)
-
cobaltite (1)
-
covellite (1)
-
cubanite (1)
-
digenite (1)
-
gersdorffite (1)
-
greigite (1)
-
molybdenite (1)
-
pentlandite (1)
-
pyrite (3)
-
pyrrhotite (2)
-
troilite (1)
-
ullmannite (1)
-
-
sulfosalts (2)
-
tellurides (1)
-
wehrlite (1)
-
-
Primary terms
-
absolute age (53)
-
Africa
-
Central Africa
-
Congo Democratic Republic (1)
-
-
East Africa
-
Lake Malawi (1)
-
Zambia (1)
-
-
East African Lakes
-
Lake Malawi (1)
-
-
Southern Africa
-
South Africa
-
Bushveld Complex (1)
-
Transvaal region (1)
-
Witwatersrand (1)
-
-
Swaziland (1)
-
-
-
Asia
-
Central Asia
-
Kazakhstan
-
Kokchetav Kazakhstan
-
Kokchetav Massif (1)
-
-
-
-
Kyrgyzstan
-
Issyk-kul Lake (1)
-
-
-
atmosphere (1)
-
Australasia
-
Australia
-
Western Australia
-
Eastern Goldfields (1)
-
-
-
-
barite deposits (1)
-
bibliography (1)
-
biography (2)
-
bitumens (3)
-
brines (4)
-
Canada
-
Eastern Canada
-
Belcher Islands (1)
-
James Bay (1)
-
Newfoundland and Labrador
-
Labrador (1)
-
Newfoundland (1)
-
-
Ontario
-
Algoma District Ontario
-
Mamainse Point (8)
-
Sault Sainte Marie Ontario (2)
-
Wawa Ontario (16)
-
-
Batchawana Bay (4)
-
Coldwell Complex (13)
-
Eye-Dashwa Lakes Pluton (8)
-
Hemlo Deposit (13)
-
Kenora District Ontario (1)
-
Michipicoten Island (2)
-
Rainy River District Ontario
-
Atikokan Ontario (12)
-
-
Sudbury Basin (3)
-
Sudbury igneous complex (1)
-
Sudbury Ontario (1)
-
Sudbury Structure (2)
-
Thunder Bay (4)
-
Thunder Bay District Ontario
-
Manitouwadge Ontario (3)
-
Northern Light Lake (1)
-
Thunder Bay Ontario (10)
-
-
-
Quebec (2)
-
-
Nunavut
-
Belcher Islands (1)
-
-
Western Canada
-
Manitoba
-
Lac du Bonnet Batholith (2)
-
Tanco Pegmatite (1)
-
-
Northwest Territories
-
Ekati Mine (1)
-
-
Yukon Territory (1)
-
-
-
carbon
-
C-13/C-12 (5)
-
C-14 (8)
-
-
Cenozoic
-
Quaternary
-
Holocene
-
lower Holocene (3)
-
upper Holocene (1)
-
-
Pleistocene
-
Lake Agassiz (3)
-
upper Pleistocene
-
Weichselian
-
upper Weichselian
-
Younger Dryas (3)
-
-
-
Wisconsinan (1)
-
-
-
upper Quaternary (5)
-
-
Tertiary
-
Neogene
-
Miocene (1)
-
-
-
-
chemical analysis (2)
-
Chordata
-
Vertebrata
-
Pisces (1)
-
-
-
clay mineralogy (6)
-
climate change (3)
-
continental drift (2)
-
crust (26)
-
crystal chemistry (9)
-
crystal growth (5)
-
crystal structure (10)
-
data processing (1)
-
deformation (29)
-
diagenesis (17)
-
diamond deposits (3)
-
earthquakes (3)
-
economic geology (54)
-
education (1)
-
electron microscopy (2)
-
engineering geology (6)
-
environmental geology (3)
-
epeirogeny (1)
-
Europe
-
Alps
-
Central Alps
-
Bernese Alps (1)
-
-
-
Central Europe
-
Austria (1)
-
Erzgebirge (1)
-
Germany (1)
-
Poland (1)
-
Switzerland
-
Bernese Alps (1)
-
-
-
Southern Europe
-
Iberian Peninsula
-
Portugal (1)
-
-
-
Western Europe
-
United Kingdom
-
Great Britain
-
Scotland
-
Edinburgh Scotland (1)
-
Midlothian Scotland (1)
-
-
-
-
-
-
explosions (1)
-
faults (38)
-
folds (22)
-
foliation (19)
-
fractures (10)
-
geochemistry (56)
-
geochronology (20)
-
geomorphology (12)
-
geophysical methods (34)
-
geophysics (1)
-
glacial geology (10)
-
ground water (9)
-
heat flow (4)
-
hydrogen
-
D/H (2)
-
-
hydrogeology (5)
-
hydrology (11)
-
igneous rocks
-
carbonatites (3)
-
feldspathoid rocks (1)
-
granophyre (2)
-
hypabyssal rocks (1)
-
kimberlite (1)
-
picrite (2)
-
plutonic rocks
-
anorthosite (4)
-
diabase (5)
-
diorites
-
tonalite (3)
-
trondhjemite (4)
-
-
gabbros
-
troctolite (9)
-
-
granites
-
aplite (2)
-
-
granodiorites (3)
-
ijolite (1)
-
lamprophyres
-
monchiquite (1)
-
spessartite (1)
-
-
monzonites (1)
-
pegmatite (4)
-
quartz monzonite (2)
-
syenites
-
nepheline syenite (1)
-
-
ultramafics
-
peridotites
-
harzburgite (1)
-
-
pyroxenite (1)
-
-
-
porphyry (2)
-
volcanic rocks
-
adakites (1)
-
andesites (3)
-
basalts
-
alkali basalts (1)
-
flood basalts (1)
-
olivine basalt (1)
-
olivine tholeiite (2)
-
shoshonite (1)
-
tholeiite (1)
-
-
glasses (1)
-
komatiite (4)
-
pyroclastics
-
tuff (1)
-
-
quartz latite (1)
-
rhyolites
-
quartz porphyry (1)
-
-
-
-
inclusions
-
fluid inclusions (10)
-
-
intrusions (84)
-
Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Branchiopoda
-
Cladocera (1)
-
-
-
Insecta (2)
-
-
-
-
isostasy (1)
-
isotopes
-
radioactive isotopes
-
Am-241 (1)
-
Be-10 (1)
-
C-14 (8)
-
Cs-137 (1)
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (2)
-
Pb-208/Pb-204 (2)
-
Rb-87/Sr-86 (1)
-
Sm-147/Nd-144 (1)
-
Sr-90 (1)
-
U-238/Th-230 (1)
-
-
stable isotopes
-
C-13/C-12 (5)
-
D/H (2)
-
Nd-144/Nd-143 (9)
-
O-18/O-16 (10)
-
Os-188/Os-187 (1)
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (2)
-
Pb-208/Pb-204 (2)
-
Rb-87/Sr-86 (1)
-
S-33 (1)
-
S-33/S-32 (2)
-
S-34/S-32 (15)
-
S-36 (2)
-
Sm-147/Nd-144 (1)
-
Sr-87/Sr-86 (7)
-
-
-
land use (1)
-
lava (18)
-
lexicons (1)
-
lineation (7)
-
magmas (43)
-
mantle (14)
-
maps (3)
-
marine geology (1)
-
Mesozoic
-
Cretaceous
-
Lower Cretaceous
-
Albian (1)
-
Aptian (1)
-
-
Middle Cretaceous (1)
-
Upper Cretaceous
-
Cenomanian (1)
-
-
-
-
metal ores
-
base metals (3)
-
cadmium ores (1)
-
chromite ores (1)
-
copper ores (64)
-
gold ores (26)
-
iron ores (21)
-
lead ores (2)
-
lead-zinc deposits (3)
-
lithium ores (1)
-
manganese ores (1)
-
molybdenum ores (2)
-
nickel ores (23)
-
niobium ores (1)
-
palladium ores (8)
-
platinum ores (13)
-
polymetallic ores (3)
-
pyrite ores (1)
-
rare earth deposits
-
cerium ores (1)
-
-
silver ores (5)
-
tantalum ores (1)
-
tin ores (1)
-
uranium ores (1)
-
zinc ores (8)
-
-
metals
-
actinides
-
americium
-
Am-241 (1)
-
-
thorium
-
U-238/Th-230 (1)
-
-
uranium
-
U-238/Th-230 (1)
-
-
-
alkali metals
-
cesium
-
Cs-137 (1)
-
-
potassium (1)
-
rubidium
-
Rb-87/Sr-86 (1)
-
-
sodium (1)
-
-
alkaline earth metals
-
barium (1)
-
beryllium
-
Be-10 (1)
-
-
calcium (1)
-
magnesium (2)
-
strontium
-
Rb-87/Sr-86 (1)
-
Sr-87/Sr-86 (7)
-
Sr-90 (1)
-
-
-
antimony (3)
-
arsenic (1)
-
chromium (2)
-
cobalt (1)
-
copper (24)
-
gold (3)
-
hafnium (1)
-
iron
-
ferric iron (1)
-
-
lead
-
Pb-206/Pb-204 (2)
-
Pb-207/Pb-204 (2)
-
Pb-208/Pb-204 (2)
-
-
manganese (1)
-
mercury (2)
-
nickel (4)
-
niobium (2)
-
platinum group
-
iridium (2)
-
osmium
-
Os-188/Os-187 (1)
-
-
palladium (1)
-
palladium ores (8)
-
platinum ores (13)
-
rhodium (1)
-
-
rare earths
-
cerium (1)
-
europium (1)
-
lanthanum (1)
-
neodymium
-
Nd-144/Nd-143 (9)
-
Sm-147/Nd-144 (1)
-
-
promethium (1)
-
samarium
-
Sm-147/Nd-144 (1)
-
-
-
silver (4)
-
technetium (1)
-
thallium (1)
-
titanium (1)
-
tungsten (1)
-
vanadium (1)
-
zinc (2)
-
zirconium (2)
-
-
metamorphic rocks
-
amphibolites (1)
-
eclogite (1)
-
gneisses
-
granite gneiss (1)
-
-
granulites (2)
-
hornfels (3)
-
impactites
-
impact breccia (2)
-
-
metaigneous rocks
-
metabasalt (1)
-
metabasite (1)
-
metagranite (2)
-
metakomatiite (1)
-
metatuff (1)
-
-
metaplutonic rocks (4)
-
metasedimentary rocks
-
metaconglomerate (2)
-
metagraywacke (1)
-
metapelite (1)
-
-
metasomatic rocks
-
skarn (2)
-
tactite (1)
-
-
metavolcanic rocks (19)
-
migmatites (3)
-
mylonites
-
pseudotachylite (1)
-
-
quartzites (1)
-
schists
-
greenstone (4)
-
-
slates (1)
-
-
metamorphism (52)
-
metasomatism (29)
-
Mexico
-
Sierra Madre Oriental (1)
-
-
mineral deposits, genesis (87)
-
mineral exploration (18)
-
mineral resources (1)
-
mineralogy (17)
-
minerals (23)
-
mining geology (2)
-
Moon (1)
-
nitrogen (1)
-
nodules (1)
-
North America
-
Canadian Shield
-
Grenville Province (5)
-
Slave Province (1)
-
Southern Province (7)
-
Superior Province
-
Abitibi Belt (7)
-
Kapuskasing Zone (7)
-
Michipicoten Belt (10)
-
Quetico Belt (14)
-
Wabigoon Belt (7)
-
Wawa Belt (34)
-
-
-
Great Lakes
-
Lake Michigan (3)
-
Lake Superior (89)
-
-
Great Lakes region (58)
-
Grenville Front (3)
-
Keweenawan Rift (46)
-
Lake Superior region (25)
-
Rainy River (2)
-
Rocky Mountains (1)
-
Saganaga Lake (1)
-
-
oceanography (1)
-
orogeny (11)
-
oxygen
-
O-18/O-16 (10)
-
-
paleoclimatology (10)
-
paleoecology (4)
-
paleogeography (16)
-
paleomagnetism (43)
-
Paleozoic
-
Cambrian (3)
-
lower Paleozoic (2)
-
Ordovician (1)
-
-
palynomorphs
-
acritarchs (1)
-
miospores
-
pollen (1)
-
-
-
paragenesis (9)
-
petroleum (4)
-
petrology (45)
-
Phanerozoic (3)
-
phase equilibria (7)
-
Plantae
-
algae
-
diatoms (1)
-
-
-
plate tectonics (17)
-
pollution (12)
-
Precambrian
-
Animikie Group (5)
-
Archean
-
Mesoarchean (1)
-
Neoarchean (15)
-
-
Biwabik Iron Formation (3)
-
Central Rand Group (1)
-
Gunflint Iron Formation (11)
-
middle Precambrian (3)
-
Nonesuch Shale (14)
-
North Shore Volcanics (8)
-
Osler Series (2)
-
Stillwater Complex (1)
-
upper Precambrian
-
Proterozoic
-
Baraga Group (3)
-
Great Oxidation Event (1)
-
Huronian
-
Onaping Formation (1)
-
-
Keweenawan
-
Copper Harbor Conglomerate (11)
-
Portage Lake Lava Series (9)
-
-
Lewisian (1)
-
Mesoproterozoic
-
Freda Sandstone (5)
-
Helikian
-
Neohelikian (2)
-
-
Stenian (3)
-
-
Negaunee Iron Formation (5)
-
Neoproterozoic (11)
-
Oronto Group (8)
-
Paleoproterozoic
-
Aphebian (3)
-
Hemlock Formation (1)
-
Marquette Range Supergroup (3)
-
Michigamme Formation (2)
-
Thomson Formation (1)
-
Virginia Formation (10)
-
-
-
-
Witwatersrand Supergroup (1)
-
-
problematic fossils
-
problematic microfossils (1)
-
-
remote sensing (1)
-
roads (1)
-
rock mechanics (2)
-
sea-level changes (1)
-
sedimentary petrology (12)
-
sedimentary rocks
-
carbonate rocks
-
limestone
-
microbialite (3)
-
-
-
chemically precipitated rocks
-
chert (1)
-
iron formations
-
banded iron formations (4)
-
-
taconite (3)
-
weathering crust (1)
-
-
clastic rocks
-
argillite (1)
-
black shale (2)
-
claystone (1)
-
conglomerate (7)
-
diamictite (1)
-
mudstone (1)
-
red beds (6)
-
sandstone (10)
-
shale (4)
-
siltstone (3)
-
-
coal (2)
-
-
sedimentary structures
-
bedding plane irregularities
-
flute casts (1)
-
grooves (1)
-
-
biogenic structures
-
bioherms (2)
-
bioturbation (1)
-
microbial mats (1)
-
stromatolites (9)
-
-
planar bedding structures
-
bedding (1)
-
cross-stratification (1)
-
laminations (2)
-
rhythmite (2)
-
varves (5)
-
-
secondary structures
-
concretions (1)
-
-
soft sediment deformation
-
clastic dikes (2)
-
-
-
sedimentation (20)
-
sediments
-
clastic sediments
-
clay (7)
-
drift (2)
-
mud (1)
-
outwash (2)
-
sand (4)
-
silt (2)
-
till (8)
-
-
marine sediments (1)
-
-
seismology (2)
-
selenium (1)
-
shorelines (5)
-
soil mechanics (1)
-
soils
-
Entisols (1)
-
-
spectroscopy (1)
-
springs (2)
-
stratigraphy (44)
-
structural analysis (31)
-
structural geology (27)
-
sulfur
-
S-33 (1)
-
S-33/S-32 (2)
-
S-34/S-32 (15)
-
S-36 (2)
-
-
symposia (1)
-
talc deposits (1)
-
tectonics (30)
-
tectonophysics (7)
-
thermal analysis (1)
-
United States
-
Alaska (1)
-
Iowa (1)
-
Kansas (1)
-
Michigan
-
Michigan Lower Peninsula
-
Cheboygan County Michigan (1)
-
Emmet County Michigan (2)
-
Lake County Michigan (1)
-
Washtenaw County Michigan (1)
-
-
Michigan Upper Peninsula
-
Alger County Michigan (3)
-
Baraga County Michigan (5)
-
Chippewa County Michigan
-
Sault Sainte Marie Michigan (1)
-
-
Dickinson County Michigan (1)
-
Gogebic County Michigan (8)
-
Houghton County Michigan (11)
-
Iron County Michigan (1)
-
Keweenaw County Michigan
-
Isle Royale National Park (1)
-
-
Keweenaw Peninsula (28)
-
Luce County Michigan (1)
-
Marquette County Michigan
-
Marquette Michigan (3)
-
Marquette Range (4)
-
-
Ontonagon County Michigan
-
White Pine Michigan (14)
-
-
-
-
Midcontinent (8)
-
Midcontinent geophysical anomaly (2)
-
Midwest (1)
-
Minnesota
-
Carlton County Minnesota (1)
-
Cook County Minnesota (15)
-
Dakota County Minnesota (1)
-
Duluth Complex (32)
-
Lake County Minnesota (23)
-
Mesabi Range (5)
-
Saint Louis County Minnesota
-
Duluth Minnesota (8)
-
Ely Minnesota (4)
-
Partridge River Intrusion (4)
-
-
Vermilion Range (3)
-
-
Missouri
-
Viburnum Trend (1)
-
-
Montana (1)
-
Nebraska (1)
-
Oregon
-
Klamath County Oregon
-
Mount Mazama (1)
-
-
-
South Dakota (1)
-
Wisconsin
-
Ashland County Wisconsin (4)
-
Bayfield County Wisconsin (4)
-
Douglas County Wisconsin (2)
-
Iron County Wisconsin (2)
-
Milwaukee County Wisconsin
-
Milwaukee Wisconsin (1)
-
-
Sawyer County Wisconsin (1)
-
-
-
volcanology (3)
-
waste disposal (11)
-
weathering (4)
-
well-logging (1)
-
-
rock formations
-
Jacobsville Sandstone (4)
-
-
sedimentary rocks
-
caliche (1)
-
contourite (1)
-
oolite (1)
-
sedimentary rocks
-
carbonate rocks
-
limestone
-
microbialite (3)
-
-
-
chemically precipitated rocks
-
chert (1)
-
iron formations
-
banded iron formations (4)
-
-
taconite (3)
-
weathering crust (1)
-
-
clastic rocks
-
argillite (1)
-
black shale (2)
-
claystone (1)
-
conglomerate (7)
-
diamictite (1)
-
mudstone (1)
-
red beds (6)
-
sandstone (10)
-
shale (4)
-
siltstone (3)
-
-
coal (2)
-
-
siliciclastics (1)
-
volcaniclastics (2)
-
-
sedimentary structures
-
channels (1)
-
sedimentary structures
-
bedding plane irregularities
-
flute casts (1)
-
grooves (1)
-
-
biogenic structures
-
bioherms (2)
-
bioturbation (1)
-
microbial mats (1)
-
stromatolites (9)
-
-
planar bedding structures
-
bedding (1)
-
cross-stratification (1)
-
laminations (2)
-
rhythmite (2)
-
varves (5)
-
-
secondary structures
-
concretions (1)
-
-
soft sediment deformation
-
clastic dikes (2)
-
-
-
striations (2)
-
-
sediments
-
contourite (1)
-
oolite (1)
-
sediments
-
clastic sediments
-
clay (7)
-
drift (2)
-
mud (1)
-
outwash (2)
-
sand (4)
-
silt (2)
-
till (8)
-
-
marine sediments (1)
-
-
siliciclastics (1)
-
volcaniclastics (2)
-
-
soils
-
paleosols (4)
-
soils
-
Entisols (1)
-
-
GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
1-20 OF 414
Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Sort by
1
Journal Article
A Holocene history of high bluffs, strandplains, terraces, and dunes along the southeastern margin of Lake Superior (Michigan, USA) with reference to fluctuating lake levels Available to Purchase
Timothy G. Fisher, Henry M. Loope, Walter L. Loope, Harry M. Jol, Andy Breckenridge, Ronald J. Goble, John B. Anderton
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 13 December 2024
GSA Bulletin (2025) 137 (5-6): 2231–2257.
Journal Article
The Magino Gold Deposit, Ontario, Canada: An Overprinted Archean Intrusion-Related Gold Deposit Available to Purchase
Ian C. Campos, Bruno Lafrance, Ross Sherlock, Paul Dunbar, Blake Mclaughlin, Stefan Kruse, Robert Creaser, Derek D.V. Leung
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 November 2024
Economic Geology (2024) 119 (7): 1563–1585.
Includes: Supplemental Content
Journal Article
Petrogenetic relationship of the variably Ni–Cu–platinum-group element (PGE)-mineralized intrusions of the Thunder Bay North Intrusive Complex, Midcontinent Rift, Canada: Implications for mineral exploration in mafic–ultramafic complexes Available to Purchase
Matthew J. Brzozowski, Pete Hollings, Mike Hamilton, Geoff Heggie, Connor Caglioti, Khalid Yahia, Andrea Corredor Bravo
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 30 October 2024
GSA Bulletin (2025) 137 (3-4): 1747–1762.
Journal Article
Reconstructing diagenetic mineral reactions from silicified horizons of the Paleoproterozoic Biwabik Iron Formation, Minnesota Available to Purchase
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 February 2024
American Mineralogist (2024) 109 (2): 339–358.
Includes: Supplemental Content
Journal Article
End-Mesoproterozoic (ca. 1.08 Ga) epeiric seaway of the Nonesuch Formation, Wisconsin and Michigan, USA Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 08 December 2023
GSA Bulletin (2024) 136 (7-8): 2940–2960.
Journal Article
Fluid Flow, Alteration, and Timing of Cu-Ag Mineralization at the White Pine Sediment-Hosted Copper Deposit, Michigan, USA Available to Purchase
Simon M. Jones, Jonathan Cloutier, Anthony R. Prave, Timothy D. Raub, Eva E. Stüeken, Holly J. Stein, Gang Yang, Adrian J. Boyce
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 September 2023
Economic Geology (2023) 118 (6): 1431–1465.
Journal Article
Reconstructing the paleoenvironment of an oxygenated Mesoproterozoic shoreline and its record of life Available to Purchase
Sarah P. Slotznick, Nicholas L. Swanson-Hysell, Yiming Zhang, Katherine E. Clayton, Charles H. Wellman, Nicholas J. Tosca, Paul K. Strother
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 22 August 2023
GSA Bulletin (2024) 136 (3-4): 1628–1650.
Journal Article
The Meter Reader: Early magnetic studies in the Lake Superior region Available to Purchase
Journal: The Leading Edge
Publisher: Society of Exploration Geophysicists
Published: 01 August 2023
The Leading Edge (2023) 42 (8): 566–568.
Journal Article
Grooving in the midcontinent: A tectonic origin for the mysterious striations of L’Anse Bay, Michigan, USA Open Access
Journal: Geosphere
Publisher: Geological Society of America
Published: 20 July 2023
Geosphere (2023) 19 (5): 1291–1299.
Journal Article
Discriminating Between Primary and Secondary Au Events in a Paragenetically Complex Archean Lode-Gold Deposit, Wawa Gold Corridor, Ontario, Canada Available to Purchase
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 March 2023
Economic Geology (2023) 118 (2): 347–370.
Includes: Supplemental Content
Journal Article
Cratonal tidal deposits of the Paleoproterozoic Mesnard Quartzite, Lake Superior region: interpretation challenges Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 06 February 2023
Canadian Journal of Earth Sciences (2023) 60 (7): 989–1004.
Journal Article
Genesis of the Island Gold Deposit, Ontario, Canada: Implications for Gold Mineralization in the Wawa Subprovince of the Superior Province Available to Purchase
Katia Jellicoe, Tyler J. Ciufo, Shoufa Lin, Natasha Wodicka, Nanping Wu, Patrick Mercier-Langevin, Chris Yakymchuk
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 November 2022
Economic Geology (2022) 117 (7): 1597–1612.
Includes: Supplemental Content
Journal Article
Episodic Nature of Magmatic Ascent in a Dynamic Conduit System: Evidence From a Late Gabbroic Intrusion Associated with the Eagle Ni-Cu Sulfide Deposit in Northern Michigan, USA Available to Purchase
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 August 2022
Economic Geology (2022) 117 (5): 1105–1130.
Includes: Supplemental Content
Journal Article
Detached structural model of the Keweenaw fault system, Lake Superior region, North America: Implications for its origin and relationship to the Midcontinent Rift System Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 25 May 2022
GSA Bulletin (2023) 135 (1-2): 449–466.
Journal Article
Final inversion of the Midcontinent Rift during the Rigolet Phase of the Grenvillian Orogeny Open Access
Eben B. Hodgin, Nicholas L. Swanson-Hysell, James M. DeGraff, Andrew R.C. Kylander-Clark, Mark D. Schmitz, Andrew C. Turner, Yiming Zhang, Daniel A. Stolper
Journal: Geology
Publisher: Geological Society of America
Published: 11 February 2022
Geology (2022) 50 (5): 547–551.
Journal Article
Cu and Ni Isotope Variations of Country Rock-Hosted Massive Sulfides Located Near Midcontinent Rift Intrusions Available to Purchase
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 January 2022
Economic Geology (2022) 117 (1): 195–211.
Journal Article
Relationships among the Geordie Lake Cu-Pd deposit, alkaline basalt, and syenites in the Coldwell Complex, Midcontinent Rift, Canada Available to Purchase
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 13 December 2021
The Canadian Mineralogist (2021) 59 (6): 1571–1597.
Journal Article
Diversification of Archean tonalite-trondhjemite-granodiorite suites in a mushy middle crust Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 20 September 2021
Geology (2022) 50 (1): 76–80.
Journal Article
Near-constant retreat rate of a terrestrial margin of the Laurentide Ice Sheet during the last deglaciation Available to Purchase
Thomas V. Lowell, Meredith A. Kelly, Jennifer A. Howley, Timothy G. Fisher, Peter J. Barnett, Roseanne Schwart, Susan R.H. Zimmerman, Nathaniel Norris, Andrew G.O. Malone
Journal: Geology
Publisher: Geological Society of America
Published: 30 August 2021
Geology (2021) 49 (12): 1511–1515.
Journal Article
Hydroxylpyromorphite, a mineral important to lead remediation: Modern description and characterization Available to Purchase
Travis A. Olds, Anthony R. Kampf, John F. Rakovan, Peter C. Burns, Owen P. Mills, Cullen Laughlin-Yurs
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 June 2021
American Mineralogist (2021) 106 (6): 922–929.
1