Update search
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- 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
-
Afar (1)
-
Blue Nile (1)
-
Central Africa
-
Burundi (4)
-
Central African Republic (1)
-
Congo (1)
-
Congo Democratic Republic
-
Kivu Congo Democratic Republic
-
Nyiragongo (2)
-
-
-
Gabon (1)
-
Lake Kivu (3)
-
Rwanda (25)
-
-
Congo Craton (2)
-
East Africa
-
Afar Depression (1)
-
Eritrea (1)
-
Ethiopia
-
Hadar (1)
-
-
Kenya
-
Fort Ternan Kenya (1)
-
Kenya Rift valley (1)
-
Lake Magadi (1)
-
-
Lake Natron (1)
-
Malawi (1)
-
Mozambique (2)
-
Sudan (4)
-
Tanzania
-
Olduvai Gorge (1)
-
-
Uganda (67)
-
-
East African Lakes
-
Lake Albert (5)
-
Lake Edward (4)
-
Lake Kivu (3)
-
Lake Magadi (1)
-
Lake Natron (1)
-
Lake Tanganyika (2)
-
-
East African Rift (17)
-
Madagascar (1)
-
Nile River (3)
-
Nile Valley (2)
-
North Africa
-
Egypt
-
Eastern Desert (1)
-
Nile Delta (2)
-
-
Morocco (1)
-
-
Nubian Shield (1)
-
Sahara (1)
-
Southern Africa
-
Namaqualand (1)
-
Namibia (2)
-
South Africa
-
Transvaal region (1)
-
Western Cape Province South Africa (1)
-
-
Zimbabwe (2)
-
-
West Africa
-
Benin (1)
-
Cameroon
-
Mount Cameroon (1)
-
-
Ghana (1)
-
Ivory Coast (1)
-
Nigeria (1)
-
Senegal (1)
-
Sierra Leone (1)
-
Togo (2)
-
-
-
Antarctica
-
Ross Island (1)
-
-
Asia
-
Central Asia
-
Kazakhstan (1)
-
-
Far East
-
Japan (1)
-
-
Indian Peninsula
-
India
-
Gujarat India (1)
-
-
-
Siberia (1)
-
-
Canada
-
Nunavut
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
-
-
Queen Elizabeth Islands
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
-
-
-
Caribbean region
-
West Indies
-
Antilles
-
Lesser Antilles
-
Saint Vincent (1)
-
-
-
-
-
Central America (1)
-
Commonwealth of Independent States
-
Kazakhstan (1)
-
Russian Federation (1)
-
-
developing countries (2)
-
East Pacific Ocean Islands
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hawaiian Volcano Observatory (1)
-
-
-
-
-
Europe
-
Central Europe
-
Germany
-
Bavaria Germany
-
Hagendorf (1)
-
-
-
-
Southern Europe
-
Italy
-
Sicily Italy
-
Mount Etna (2)
-
-
-
-
Western Europe
-
Iceland
-
Eyjafjallajokull (1)
-
Grimsvotn (1)
-
-
United Kingdom
-
Great Britain
-
England (1)
-
Scotland (1)
-
Wales (1)
-
-
-
-
-
Great Rift Valley (3)
-
Green River basin (1)
-
Indian Ocean
-
Carlsberg Ridge (1)
-
Red Sea
-
Gulf of Suez (1)
-
Red Sea Rift (1)
-
-
-
Indian Ocean Islands
-
Madagascar (1)
-
-
Lake George (2)
-
Lake Victoria (7)
-
Mount Erebus (1)
-
Oceania
-
Melanesia
-
Vanuatu (1)
-
-
Polynesia
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hawaiian Volcano Observatory (1)
-
-
-
-
-
-
Pacific Ocean
-
West Pacific
-
Ontong Java Plateau (1)
-
-
-
Red Sea region (1)
-
South America
-
Andes
-
Tungurahua (1)
-
-
Argentina (1)
-
Brazil
-
Minas Gerais Brazil (2)
-
-
Ecuador
-
Tungurahua (1)
-
-
Peru (1)
-
-
United States
-
Colorado (1)
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hawaiian Volcano Observatory (1)
-
-
-
-
Utah (1)
-
Washakie Basin (1)
-
Wyoming
-
Rock Springs Uplift (1)
-
-
-
Windward Islands (1)
-
-
commodities
-
brines (1)
-
diamond deposits (1)
-
metal ores
-
iron ores (1)
-
niobium ores (1)
-
-
mineral deposits, genesis (3)
-
petroleum
-
natural gas (3)
-
-
phosphate deposits (1)
-
water resources (2)
-
zircon deposits (1)
-
-
elements, isotopes
-
carbon
-
C-13 (1)
-
C-13/C-12 (1)
-
C-14 (3)
-
-
chemical ratios (1)
-
isotope ratios (7)
-
isotopes
-
radioactive isotopes
-
Be-10 (3)
-
C-14 (3)
-
-
stable isotopes
-
C-13 (1)
-
C-13/C-12 (1)
-
Fe-57 (1)
-
He-3 (1)
-
He-4 (1)
-
He-4/He-3 (1)
-
Nd-144/Nd-143 (3)
-
O-18/O-16 (3)
-
Sr-87/Sr-86 (4)
-
-
-
metals
-
actinides
-
uranium (2)
-
-
alkali metals
-
lithium (1)
-
rubidium (1)
-
sodium (1)
-
-
alkaline earth metals
-
beryllium
-
Be-10 (3)
-
-
calcium (1)
-
magnesium (3)
-
strontium
-
Sr-87/Sr-86 (4)
-
-
-
aluminum (3)
-
chromium (1)
-
iron
-
Fe-57 (1)
-
ferric iron (1)
-
ferrous iron (1)
-
-
lead (2)
-
niobium (4)
-
rare earths
-
cerium (1)
-
lanthanum (1)
-
neodymium
-
Nd-144/Nd-143 (3)
-
-
-
tantalum (2)
-
tin (3)
-
titanium (1)
-
zinc (1)
-
-
noble gases
-
helium
-
He-3 (1)
-
He-4 (1)
-
He-4/He-3 (1)
-
-
-
oxygen
-
O-18/O-16 (3)
-
-
-
fossils
-
burrows (1)
-
Chordata
-
Vertebrata
-
Pisces (1)
-
Tetrapoda
-
Aves
-
Neornithes (1)
-
-
Mammalia
-
Theria
-
Eutheria
-
Primates
-
Hominidae
-
Homo
-
Homo habilis (1)
-
-
-
simians
-
Cercopithecidae (1)
-
-
-
Proboscidea
-
Elephantoidea (1)
-
-
-
-
-
Reptilia
-
Anapsida
-
Testudines
-
Chelonia (1)
-
Pleurodira
-
Pelomedusidae (1)
-
-
Testudinidae (1)
-
-
-
Diapsida
-
Archosauria
-
Crocodilia
-
Eusuchia
-
Crocodylidae (1)
-
-
-
-
-
-
-
-
-
fossil man (2)
-
ichnofossils (1)
-
Invertebrata
-
Archaeocyatha (1)
-
Arthropoda
-
Mandibulata
-
Insecta
-
Pterygota
-
Neoptera
-
Endopterygota
-
Hymenoptera (1)
-
-
-
-
-
-
-
-
microfossils (2)
-
palynomorphs
-
miospores
-
pollen (1)
-
-
-
problematic fossils (1)
-
-
geochronology methods
-
(U-Th)/He (1)
-
exposure age (1)
-
K/Ar (1)
-
Nd/Nd (1)
-
Rb/Sr (3)
-
U/Pb (3)
-
U/Th/Pb (1)
-
-
geologic age
-
Cenozoic
-
Quaternary
-
Holocene
-
Medieval Warm Period (1)
-
Neoglacial (1)
-
upper Holocene (2)
-
-
Pleistocene
-
lower Pleistocene (1)
-
upper Pleistocene (2)
-
-
upper Quaternary (5)
-
-
Tertiary
-
Neogene
-
Miocene
-
lower Miocene (4)
-
middle Miocene (1)
-
upper Miocene (1)
-
-
Pliocene (5)
-
-
Paleogene
-
Eocene
-
Green River Formation (1)
-
Lake Gosiute (1)
-
-
-
-
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous (1)
-
-
Jurassic (1)
-
Triassic (1)
-
-
Paleozoic
-
Cambrian (2)
-
lower Paleozoic (1)
-
Permian (1)
-
-
Phanerozoic (1)
-
Precambrian
-
Archean
-
Neoarchean (1)
-
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (2)
-
Neoproterozoic (3)
-
Paleoproterozoic (2)
-
-
-
-
-
igneous rocks
-
igneous rocks
-
carbonatites (8)
-
kamafugite (2)
-
kimberlite (1)
-
plutonic rocks
-
diabase (1)
-
granites
-
charnockite (1)
-
-
pegmatite (13)
-
-
volcanic rocks
-
basalts
-
alkali basalts (1)
-
flood basalts (1)
-
-
melilitite (1)
-
nephelinite
-
olivine nephelinite (1)
-
-
pyroclastics
-
tuff (1)
-
-
-
-
-
metamorphic rocks
-
metamorphic rocks
-
gneisses
-
granite gneiss (1)
-
-
granulites (3)
-
metasedimentary rocks (1)
-
schists (1)
-
-
turbidite (1)
-
-
minerals
-
carbonates
-
calcite (2)
-
dawsonite (1)
-
magnesian calcite (1)
-
nahcolite (1)
-
-
minerals (5)
-
native elements
-
diamond (1)
-
-
oxides
-
cassiterite (1)
-
niobates
-
columbite (2)
-
-
rutile (1)
-
tantalates
-
tantalite (1)
-
-
-
phosphates
-
amblygonite (1)
-
apatite (2)
-
lazulite (1)
-
monazite (1)
-
montebrasite (2)
-
-
silicates
-
aluminosilicates (1)
-
borosilicates (1)
-
chain silicates
-
pyroxene group
-
clinopyroxene
-
diopside (2)
-
omphacite (1)
-
-
orthopyroxene
-
enstatite (1)
-
-
-
-
framework silicates
-
nepheline group
-
kalsilite (1)
-
nepheline (1)
-
-
silica minerals
-
moganite (1)
-
quartz (3)
-
-
-
orthosilicates
-
nesosilicates
-
garnet group
-
almandine (1)
-
spessartine (1)
-
-
olivine group
-
forsterite (1)
-
olivine (1)
-
-
zircon group
-
zircon (2)
-
-
-
-
ring silicates
-
tourmaline group (1)
-
-
sheet silicates
-
chlorite group
-
chlorite (1)
-
-
clay minerals
-
dickite (1)
-
-
mica group
-
biotite (1)
-
muscovite (1)
-
phlogopite (2)
-
-
-
-
-
Primary terms
-
absolute age (13)
-
Africa
-
Afar (1)
-
Blue Nile (1)
-
Central Africa
-
Burundi (4)
-
Central African Republic (1)
-
Congo (1)
-
Congo Democratic Republic
-
Kivu Congo Democratic Republic
-
Nyiragongo (2)
-
-
-
Gabon (1)
-
Lake Kivu (3)
-
Rwanda (25)
-
-
Congo Craton (2)
-
East Africa
-
Afar Depression (1)
-
Eritrea (1)
-
Ethiopia
-
Hadar (1)
-
-
Kenya
-
Fort Ternan Kenya (1)
-
Kenya Rift valley (1)
-
Lake Magadi (1)
-
-
Lake Natron (1)
-
Malawi (1)
-
Mozambique (2)
-
Sudan (4)
-
Tanzania
-
Olduvai Gorge (1)
-
-
Uganda (67)
-
-
East African Lakes
-
Lake Albert (5)
-
Lake Edward (4)
-
Lake Kivu (3)
-
Lake Magadi (1)
-
Lake Natron (1)
-
Lake Tanganyika (2)
-
-
East African Rift (17)
-
Madagascar (1)
-
Nile River (3)
-
Nile Valley (2)
-
North Africa
-
Egypt
-
Eastern Desert (1)
-
Nile Delta (2)
-
-
Morocco (1)
-
-
Nubian Shield (1)
-
Sahara (1)
-
Southern Africa
-
Namaqualand (1)
-
Namibia (2)
-
South Africa
-
Transvaal region (1)
-
Western Cape Province South Africa (1)
-
-
Zimbabwe (2)
-
-
West Africa
-
Benin (1)
-
Cameroon
-
Mount Cameroon (1)
-
-
Ghana (1)
-
Ivory Coast (1)
-
Nigeria (1)
-
Senegal (1)
-
Sierra Leone (1)
-
Togo (2)
-
-
-
Antarctica
-
Ross Island (1)
-
-
Asia
-
Central Asia
-
Kazakhstan (1)
-
-
Far East
-
Japan (1)
-
-
Indian Peninsula
-
India
-
Gujarat India (1)
-
-
-
Siberia (1)
-
-
brines (1)
-
Canada
-
Nunavut
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
-
-
Queen Elizabeth Islands
-
Sverdrup Islands
-
Axel Heiberg Island (1)
-
-
-
-
carbon
-
C-13 (1)
-
C-13/C-12 (1)
-
C-14 (3)
-
-
Caribbean region
-
West Indies
-
Antilles
-
Lesser Antilles
-
Saint Vincent (1)
-
-
-
-
-
catalogs (1)
-
Cenozoic
-
Quaternary
-
Holocene
-
Medieval Warm Period (1)
-
Neoglacial (1)
-
upper Holocene (2)
-
-
Pleistocene
-
lower Pleistocene (1)
-
upper Pleistocene (2)
-
-
upper Quaternary (5)
-
-
Tertiary
-
Neogene
-
Miocene
-
lower Miocene (4)
-
middle Miocene (1)
-
upper Miocene (1)
-
-
Pliocene (5)
-
-
Paleogene
-
Eocene
-
Green River Formation (1)
-
Lake Gosiute (1)
-
-
-
-
-
Central America (1)
-
chemical analysis (1)
-
Chordata
-
Vertebrata
-
Pisces (1)
-
Tetrapoda
-
Aves
-
Neornithes (1)
-
-
Mammalia
-
Theria
-
Eutheria
-
Primates
-
Hominidae
-
Homo
-
Homo habilis (1)
-
-
-
simians
-
Cercopithecidae (1)
-
-
-
Proboscidea
-
Elephantoidea (1)
-
-
-
-
-
Reptilia
-
Anapsida
-
Testudines
-
Chelonia (1)
-
Pleurodira
-
Pelomedusidae (1)
-
-
Testudinidae (1)
-
-
-
Diapsida
-
Archosauria
-
Crocodilia
-
Eusuchia
-
Crocodylidae (1)
-
-
-
-
-
-
-
-
-
climate change (3)
-
crust (2)
-
crystal chemistry (9)
-
crystal structure (14)
-
crystallography (2)
-
data processing (3)
-
diamond deposits (1)
-
earthquakes (2)
-
East Pacific Ocean Islands
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hawaiian Volcano Observatory (1)
-
-
-
-
-
ecology (2)
-
economic geology (2)
-
education (1)
-
Europe
-
Central Europe
-
Germany
-
Bavaria Germany
-
Hagendorf (1)
-
-
-
-
Southern Europe
-
Italy
-
Sicily Italy
-
Mount Etna (2)
-
-
-
-
Western Europe
-
Iceland
-
Eyjafjallajokull (1)
-
Grimsvotn (1)
-
-
United Kingdom
-
Great Britain
-
England (1)
-
Scotland (1)
-
Wales (1)
-
-
-
-
-
faults (6)
-
fossil man (2)
-
geochemistry (19)
-
geochronology (4)
-
geomorphology (5)
-
geophysical methods (8)
-
geophysics (1)
-
glacial geology (1)
-
government agencies (1)
-
ground water (3)
-
heat flow (1)
-
hydrogeology (1)
-
hydrology (3)
-
ichnofossils (1)
-
igneous rocks
-
carbonatites (8)
-
kamafugite (2)
-
kimberlite (1)
-
plutonic rocks
-
diabase (1)
-
granites
-
charnockite (1)
-
-
pegmatite (13)
-
-
volcanic rocks
-
basalts
-
alkali basalts (1)
-
flood basalts (1)
-
-
melilitite (1)
-
nephelinite
-
olivine nephelinite (1)
-
-
pyroclastics
-
tuff (1)
-
-
-
-
inclusions
-
fluid inclusions (2)
-
-
Indian Ocean
-
Carlsberg Ridge (1)
-
Red Sea
-
Gulf of Suez (1)
-
Red Sea Rift (1)
-
-
-
Indian Ocean Islands
-
Madagascar (1)
-
-
intrusions (7)
-
Invertebrata
-
Archaeocyatha (1)
-
Arthropoda
-
Mandibulata
-
Insecta
-
Pterygota
-
Neoptera
-
Endopterygota
-
Hymenoptera (1)
-
-
-
-
-
-
-
-
isotopes
-
radioactive isotopes
-
Be-10 (3)
-
C-14 (3)
-
-
stable isotopes
-
C-13 (1)
-
C-13/C-12 (1)
-
Fe-57 (1)
-
He-3 (1)
-
He-4 (1)
-
He-4/He-3 (1)
-
Nd-144/Nd-143 (3)
-
O-18/O-16 (3)
-
Sr-87/Sr-86 (4)
-
-
-
land use (1)
-
lava (3)
-
magmas (7)
-
mantle (6)
-
maps (2)
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous (1)
-
-
Jurassic (1)
-
Triassic (1)
-
-
metal ores
-
iron ores (1)
-
niobium ores (1)
-
-
metals
-
actinides
-
uranium (2)
-
-
alkali metals
-
lithium (1)
-
rubidium (1)
-
sodium (1)
-
-
alkaline earth metals
-
beryllium
-
Be-10 (3)
-
-
calcium (1)
-
magnesium (3)
-
strontium
-
Sr-87/Sr-86 (4)
-
-
-
aluminum (3)
-
chromium (1)
-
iron
-
Fe-57 (1)
-
ferric iron (1)
-
ferrous iron (1)
-
-
lead (2)
-
niobium (4)
-
rare earths
-
cerium (1)
-
lanthanum (1)
-
neodymium
-
Nd-144/Nd-143 (3)
-
-
-
tantalum (2)
-
tin (3)
-
titanium (1)
-
zinc (1)
-
-
metamorphic rocks
-
gneisses
-
granite gneiss (1)
-
-
granulites (3)
-
metasedimentary rocks (1)
-
schists (1)
-
-
metamorphism (1)
-
metasomatism (1)
-
mineral deposits, genesis (3)
-
mineralogy (6)
-
minerals (5)
-
noble gases
-
helium
-
He-3 (1)
-
He-4 (1)
-
He-4/He-3 (1)
-
-
-
Oceania
-
Melanesia
-
Vanuatu (1)
-
-
Polynesia
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hawaiian Volcano Observatory (1)
-
-
-
-
-
-
orogeny (2)
-
oxygen
-
O-18/O-16 (3)
-
-
Pacific Ocean
-
West Pacific
-
Ontong Java Plateau (1)
-
-
-
paleoclimatology (8)
-
paleoecology (3)
-
paleogeography (2)
-
paleontology (6)
-
Paleozoic
-
Cambrian (2)
-
lower Paleozoic (1)
-
Permian (1)
-
-
palynomorphs
-
miospores
-
pollen (1)
-
-
-
paragenesis (3)
-
petroleum
-
natural gas (3)
-
-
petrology (9)
-
Phanerozoic (1)
-
phase equilibria (1)
-
phosphate deposits (1)
-
plate tectonics (4)
-
pollution (2)
-
Precambrian
-
Archean
-
Neoarchean (1)
-
-
upper Precambrian
-
Proterozoic
-
Mesoproterozoic (2)
-
Neoproterozoic (3)
-
Paleoproterozoic (2)
-
-
-
-
problematic fossils (1)
-
reclamation (1)
-
Red Sea region (1)
-
remote sensing (2)
-
rock mechanics (1)
-
sedimentary petrology (1)
-
sedimentary rocks
-
clastic rocks
-
arenite
-
quartz arenite (1)
-
-
sandstone (1)
-
shale (2)
-
siltstone (2)
-
-
coal (1)
-
-
sedimentary structures
-
biogenic structures
-
stromatolites (1)
-
-
-
sedimentation (2)
-
sediments
-
clastic sediments
-
alluvium (1)
-
residuum (1)
-
sand (3)
-
silt (1)
-
-
peat (1)
-
-
soils (6)
-
South America
-
Andes
-
Tungurahua (1)
-
-
Argentina (1)
-
Brazil
-
Minas Gerais Brazil (2)
-
-
Ecuador
-
Tungurahua (1)
-
-
Peru (1)
-
-
stratigraphy (4)
-
structural geology (3)
-
tectonics
-
neotectonics (1)
-
-
tectonophysics (3)
-
United States
-
Colorado (1)
-
Hawaii
-
Hawaii County Hawaii
-
Hawaii Island
-
Hawaiian Volcano Observatory (1)
-
-
-
-
Utah (1)
-
Washakie Basin (1)
-
Wyoming
-
Rock Springs Uplift (1)
-
-
-
volcanology (3)
-
water resources (2)
-
weathering (4)
-
well-logging (1)
-
zircon deposits (1)
-
-
rock formations
-
Deccan Traps (1)
-
Emeishan Basalts (1)
-
Nama Group (1)
-
Siberian Traps (1)
-
-
sedimentary rocks
-
sedimentary rocks
-
clastic rocks
-
arenite
-
quartz arenite (1)
-
-
sandstone (1)
-
shale (2)
-
siltstone (2)
-
-
coal (1)
-
-
turbidite (1)
-
-
sedimentary structures
-
burrows (1)
-
channels (1)
-
sedimentary structures
-
biogenic structures
-
stromatolites (1)
-
-
-
-
sediments
-
sediments
-
clastic sediments
-
alluvium (1)
-
residuum (1)
-
sand (3)
-
silt (1)
-
-
peat (1)
-
-
turbidite (1)
-
-
soils
-
paleosols (2)
-
soils (6)
-
GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Prediction of reservoir properties using inverse rock physics modelling in the Kanywataba Exploration Area, Albertine Graben Available to Purchase
Timing of the Cenozoic magmatic intrusions in the offshore Tanga Basin, Tanzania: correlation to age equivalent deposits in the Eyasi-Wembere Basin and their implications for petroleum potential Available to Purchase
Paragenesis and precipitation stages of Nb-Ta-oxide minerals in phosphorus-rich rare-element pegmatites (Buranga dike, Rwanda) Available to Purchase
Crystal chemistry and nomenclature of fillowite-type phosphates Available to Purchase
Garnet and Rutile Mineral Chemistry and Zircon U-Pb Ages of Modern River Sand along the Western East African Rift (Albertine Rift, Uganda) Available to Purchase
Modeling glacier extents and equilibrium line altitudes in the Rwenzori Mountains, Uganda, over the last 31,000 yr Available to Purchase
ABSTRACT Mountain glacier moraine sequences and their chronologies allow us to evaluate the timing and climate conditions that underpin changes in the equilibrium line altitudes (ELAs), which can provide valuable information on the paleoclimatology of understudied regions such as tropical East Africa. However, moraine sequences are inherently discontinuous, and the precise climate conditions that they represent can be ambiguous due to the sensitivity of mountain glaciers to temperature, precipitation, and other environmental variables. Here, we used a two-dimensional (2-D) ice-flow and mass-balance model to simulate glacier extents and ELAs in the Rwenzori Mountains in East Africa over the past 31,000 yr (31 k.y.), including the Last Glacial Maximum (LGM), late glacial period, and the Holocene Epoch. We drove the glacier model with two independent, continuous temperature reconstructions to simulate possible glacier length changes through time. Model input paleoclimate values came from branched glycerol dialkyl glycerol tetraether (brGDGT) temperature reconstructions from alpine lakes on Mount Kenya for the last ~31 k.y., and precipitation reconstructions for the LGM came from various East African locations. We then compared the simulated fluctuations with the positions and ages (where known) of the Rwenzori moraines. The simulated glacier extents reached within 1.1 km of the dated LGM moraines in one valley (93% of the full LGM extent) when forced by the brGDGT temperature reconstructions (maximum cooling of 6.1 °C) and a decrease in precipitation (−10% than modern amounts). These simulations suggest that the Rwenzori glaciers required a cooling of at least 6.1 °C to reach the dated LGM moraines. Based on the model output, we predict an age of 12–11 ka for moraines located halfway between the LGM and modern glacier extents. We also predict ice-free conditions in the Rwenzori Mountains for most of the early to middle Holocene, followed by a late Holocene glacier readvance within the last 2000 yr.
A new crocodylid from the middle Miocene of Kenya and the timing of crocodylian faunal change in the late Cenozoic of Africa Available to Purchase
Similar Holocene glaciation histories in tropical South America and Africa Available to Purchase
Petrophysical and mineralogical evolution of weathered crystalline basement in western Uganda: Implications for fluid transfer and storage Available to Purchase
Direct Observation of Boro-aluminosilicate Melt Compositions: Insights from Raman Spectroscopy of Melt Inclusions in Pegmatitic Tourmaline of the Gatumba-gitarama Area (Rwanda) Available to Purchase
A detrital record of the Nile River and its catchment Open Access
KivuSNet: The First Dense Broadband Seismic Network for the Kivu Rift Region (Western Branch of East African Rift) Available to Purchase
Using Sm-Nd systematics to constrain sediment sources of the Ikorongo Group, north-eastern Tanzania Available to Purchase
Gravity and magnetic modelling of layered mafic–ultramafic intrusions in large igneous province plume centre regions: case studies from the 1.27 Ga Mackenzie, 1.38 Ga Kunene–Kibaran, 0.06 Ga Deccan, and 0.13–0.08 Ga High Arctic events Available to Purchase
Crystal Chemistry of the Wyllieite Group of Phosphate Minerals Available to Purchase
Time not wasted: How collaborative research and education help build groundwater sustainability in rural northern Uganda, Africa Available to Purchase
The long-term success of water projects in water-stressed communities hinges not only on providing access to safe water, but also on equipping communities for sustainable resource management. Coupling research with education facilitates sustainability by growing local hydrogeologic knowledge and supporting prudent management. Adjusting management practices requires time, and it is helped through collaboration and trust between researchers and stakeholders. Research and education were integrated during an evaluation of groundwater resource sustainability and wastewater management practices at Restoration Gateway, an orphanage in northern Uganda. Basic hydrogeologic understanding was established through field work, staff interviews, and literature. An opportunity to collaborate with a visiting surveying and master planning team leveraged time spent on-site for greater results. Hydrologic education occurred formally and informally, through science lessons at the orphanage school and daily interactions with the Restoration Gateway population. Staff were interviewed regarding as-built designs, water usage, and wastewater management practices. Knowledge gained enabled researchers to make recommendations for preserving groundwater quantity and quality. Site-specific information was incorporated into a master plan for future development. Education efforts and trust gained through immersion in the life of Restoration Gateway increased awareness and acceptance regarding groundwater sustainability. In international work, it can be easy to focus on maximizing time for research and associated tasks. This case study presents ideas for spending time in local participation and education. Participation in the local community, involving them in research efforts, and building their hydrogeologic understanding improve the chances of recommendations being adopted and can foster long-term partnerships that enhance groundwater sustainability.
15. Microclimate and niche constructionism in tropical bat caves: A case study from Mount Elgon, Kenya Open Access
Significant impacts on cave microclimate from large populations of the bat Rousettus aegyptiacus have been documented in three simple caves in pyroclastic rock of Mount Elgon National Park, Kenya, one of which, Kitum Cave, with few bats, acts as a control, indicating microclimatic variations in the absence of significant biological activity. Seven days of temperature logger records, and on-site mapping of rock and air temperature, humidity, and air flow provide the basis for modeling of heat, water, and CO 2 production and dispersion. Internal temperatures in the presence of bats in Mackingeny Cave and Ngwarisha Cave rise to ~18 °C above ambient (from ~12 °C to ~30 °C), but in the control site by only ~2 °C. Excess bat-generated energy is dissipated by conduction to rock and by ongoing air circulation, the strongest of which accompanies bat entry and exit flights. In Kitum Cave, temperatures that are substantially lower than bat thermo-neutral zone raise concern for Allee effects on long-term colony fitness: Modeling indicates that a population of at least 100,000 bats should promote colony vitality. Metabolic outputs were modeled to yield corrosional potential: At these population densities, were the caves in limestone, rates of surface denudation caused directly by metabolic outputs would be 1 m in ~80,000 yr. These results confirm that tropical bats can be effective niche constructionists, by optimizing microclimatic roost conditions, by longer-term bioerosional optimization of rock surfaces for roosting, and by long-term niche engineering through zoo-speleogenetic enlargement of roost volume.
The NASA Volcano Sensor Web, advanced autonomy and the remote sensing of volcanic eruptions: a review Available to Purchase
Abstract The Volcano Sensor Web (VSW) is a globe-spanning net of sensors and applications for detecting volcanic activity. Alerts from the VSW are used to trigger observations from space using the Earth Observing-1 ( EO-1 ) spacecraft. Onboard EO-1 is the Autonomous Sciencecraft Experiment (ASE) advanced autonomy software. Using ASE has streamlined spacecraft operations and has enabled the rapid delivery of high-level products to end-users. The entire process, from initial alert to product delivery, is autonomous. This facility is of great value as a rapid response is vital during a volcanic crisis. ASE consists of three parts: (1) Science Data Classifiers, which process EO-1 Hyperion data to identify anomalous thermal signals; (2) a Spacecraft Command Language; and (3) the Continuous Activity Scheduling Planning Execution and Replanning (CASPER) software that plans and replans activities, including downlinks, based on available resources and operational constraints. For each eruption detected, thermal emission maps and estimates of eruption parameters are posted to a website at the Jet Propulsion Laboratory, California Institute of Technology, in Pasadena, CA. Selected products are emailed to end-users. The VSW uses software agents to detect volcanic activity alerts generated from a wide variety of sources on the ground and in space, and can also be easily triggered manually.
Simulating the area covered by lava flows using the DOWNFLOW code Available to Purchase
Abstract DOWNFLOW is a probabilistic code for the simulation of the area covered by lava flows. This code has been used extensively for several basaltic volcanoes in the last decade, and a review of some applications is presented. DOWNFLOW is based on the simple principle that a lava flow tends to follow the steepest descent path downhill from the vent. DOWNFLOW computes the area possibly inundated by lava flows by deriving a number, N , of steepest descent paths, each path being calculated over a randomly perturbed topography. The perturbation is applied at each point of the topography, and ranges within the interval ±Δ h . N and Δ h are the two basic parameters of the code. The expected flow length is constrained by statistical weighting based on the past activity of the volcano. The strength of the code is that: (i) only limited volcanological knowledge is necessary to apply the code at a given volcano; (ii) there are only two (easily tunable) input parameters; and (iii) computational requirements are very low. However, DOWNFLOW does not provide the progression of the lava emplacement over time. The use of DOWNFLOW is ideal when a large number of simulations are necessary: for example, to compile maps for hazard and risk-assessment purposes.