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NARROW
Format
Article Type
Journal
Publisher
Section
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Africa
-
North Africa
-
Egypt (1)
-
-
-
Atlantic Ocean
-
Equatorial Atlantic (1)
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North Atlantic
-
Blake Plateau
-
Blake Nose (2)
-
-
Caribbean Sea
-
Nicaragua Rise (1)
-
-
Gulf of Mexico (1)
-
Northwest Atlantic
-
Demerara Rise (1)
-
-
-
West Atlantic (1)
-
-
Bass River (17)
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
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Cuba (1)
-
Hispaniola
-
Haiti
-
Beloc Haiti (1)
-
-
-
-
-
-
-
Central America
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Belize (1)
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Guatemala (1)
-
-
Chicxulub Crater (3)
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Colombian Basin (1)
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Mexico (2)
-
United States
-
Atlantic Coastal Plain (12)
-
Kansas
-
Washington County Kansas (1)
-
-
New Jersey
-
Burlington County New Jersey (13)
-
Camden County New Jersey
-
Ancora New Jersey (3)
-
-
Cumberland County New Jersey (1)
-
Millville New Jersey (1)
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Ocean County New Jersey (1)
-
-
Texas
-
Brazos River (2)
-
-
-
Wilson Lake (2)
-
-
elements, isotopes
-
carbon
-
C-13/C-12 (9)
-
organic carbon (1)
-
-
isotope ratios (12)
-
isotopes
-
stable isotopes
-
C-13/C-12 (9)
-
O-18/O-16 (8)
-
-
-
metals
-
alkaline earth metals
-
calcium
-
Mg/Ca (2)
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-
magnesium
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Mg/Ca (2)
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-
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platinum group
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iridium (1)
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-
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oxygen
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O-18/O-16 (8)
-
-
-
fossils
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Invertebrata
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Arthropoda
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Mandibulata
-
Crustacea
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Ostracoda (1)
-
-
-
-
Mollusca (1)
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Protista
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Foraminifera
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Rotaliina
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Buliminacea
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Bulimina (1)
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Cassidulinacea
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Anomalinidae
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Cibicidoides (1)
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-
-
-
-
-
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microfossils (14)
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palynomorphs
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Dinoflagellata (2)
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Plantae
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algae
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nannofossils (3)
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-
-
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geologic age
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Cenozoic
-
Tertiary
-
Paleogene
-
Eocene
-
lower Eocene (3)
-
-
Paleocene
-
lower Paleocene
-
Danian (2)
-
K-T boundary (4)
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-
upper Paleocene (3)
-
-
Paleocene-Eocene Thermal Maximum (5)
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-
-
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous
-
Campanian (1)
-
Cenomanian (2)
-
K-T boundary (4)
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Magothy Formation (2)
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Marshalltown Formation (2)
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Navesink Formation (2)
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Santonian (1)
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Senonian (1)
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Turonian (2)
-
-
-
-
-
minerals
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carbonates
-
magnesian calcite (1)
-
-
silicates
-
sheet silicates
-
clay minerals
-
kaolinite (1)
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-
-
-
-
Primary terms
-
Africa
-
North Africa
-
Egypt (1)
-
-
-
Atlantic Ocean
-
Equatorial Atlantic (1)
-
North Atlantic
-
Blake Plateau
-
Blake Nose (2)
-
-
Caribbean Sea
-
Nicaragua Rise (1)
-
-
Gulf of Mexico (1)
-
Northwest Atlantic
-
Demerara Rise (1)
-
-
-
West Atlantic (1)
-
-
carbon
-
C-13/C-12 (9)
-
organic carbon (1)
-
-
Caribbean region
-
West Indies
-
Antilles
-
Greater Antilles
-
Cuba (1)
-
Hispaniola
-
Haiti
-
Beloc Haiti (1)
-
-
-
-
-
-
-
Cenozoic
-
Tertiary
-
Paleogene
-
Eocene
-
lower Eocene (3)
-
-
Paleocene
-
lower Paleocene
-
Danian (2)
-
K-T boundary (4)
-
-
upper Paleocene (3)
-
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Paleocene-Eocene Thermal Maximum (5)
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-
-
-
Central America
-
Belize (1)
-
Guatemala (1)
-
-
clay mineralogy (2)
-
climate change (3)
-
geochemistry (4)
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Invertebrata
-
Arthropoda
-
Mandibulata
-
Crustacea
-
Ostracoda (1)
-
-
-
-
Mollusca (1)
-
Protista
-
Foraminifera
-
Rotaliina
-
Buliminacea
-
Bulimina (1)
-
-
Cassidulinacea
-
Anomalinidae
-
Cibicidoides (1)
-
-
-
-
-
-
-
isotopes
-
stable isotopes
-
C-13/C-12 (9)
-
O-18/O-16 (8)
-
-
-
Mesozoic
-
Cretaceous
-
Upper Cretaceous
-
Campanian (1)
-
Cenomanian (2)
-
K-T boundary (4)
-
Magothy Formation (2)
-
Marshalltown Formation (2)
-
Navesink Formation (2)
-
Santonian (1)
-
Senonian (1)
-
Turonian (2)
-
-
-
-
metals
-
alkaline earth metals
-
calcium
-
Mg/Ca (2)
-
-
magnesium
-
Mg/Ca (2)
-
-
-
platinum group
-
iridium (1)
-
-
-
Mexico (2)
-
ocean circulation (1)
-
Ocean Drilling Program
-
Leg 150 (1)
-
Leg 165
-
ODP Site 1001 (1)
-
ODP Site 999 (1)
-
-
Leg 171B
-
ODP Site 1049 (1)
-
ODP Site 1050 (1)
-
-
Leg 174A (1)
-
Leg 174AX
-
Ancora Site (1)
-
Bass River Site (4)
-
Medford Site (1)
-
Millville Site (1)
-
Wilson Lake Site (1)
-
-
Leg 207
-
ODP Site 1259 (1)
-
-
-
oxygen
-
O-18/O-16 (8)
-
-
paleoclimatology (7)
-
paleoecology (4)
-
paleontology (1)
-
palynomorphs
-
Dinoflagellata (2)
-
-
Plantae
-
algae
-
nannofossils (3)
-
-
-
sea-level changes (6)
-
sedimentation (1)
-
sediments
-
clastic sediments
-
clay (1)
-
sand (1)
-
-
-
United States
-
Atlantic Coastal Plain (12)
-
Kansas
-
Washington County Kansas (1)
-
-
New Jersey
-
Burlington County New Jersey (13)
-
Camden County New Jersey
-
Ancora New Jersey (3)
-
-
Cumberland County New Jersey (1)
-
Millville New Jersey (1)
-
Ocean County New Jersey (1)
-
-
Texas
-
Brazos River (2)
-
-
-
weathering (1)
-
-
sediments
-
sediments
-
clastic sediments
-
clay (1)
-
sand (1)
-
-
-
GeoRef Categories
Era and Period
Epoch and Age
Date
Availability
Bass River
Exploring Early Eocene Hyperthermals on the New Jersey Paleoshelf (ODP 174AX)
Clear as mud: Clinoform progradation and expanded records of the Paleocene-Eocene Thermal Maximum
Sequence stratigraphy, micropaleontology, and foraminiferal geochemistry, Bass River, New Jersey paleoshelf, USA: Implications for Eocene ice-volume changes
Single-species dinoflagellate cyst carbon isotope ecology across the Paleocene-Eocene Thermal Maximum
A continental shelf perspective of ocean acidification and temperature evolution during the Paleocene-Eocene Thermal Maximum
A perturbed hydrological cycle during Oceanic Anoxic Event 2
Chicxulub impact spherules in the North Atlantic and Caribbean: age constraints and Cretaceous–Tertiary boundary hiatus
Clay assemblage and oxygen isotopic constraints on the weathering response to the Paleocene-Eocene thermal maximum, east coast of North America
Restructuring outer neritic foraminiferal assemblages in the aftermath of the Paleocene–Eocene thermal maximum
Carbonate accretionary lapilli in distal deposits of the Chicxulub impact event
Impact stratigraphy is an extremely useful correlation tool that makes use of unique events in Earth's history and places them within spatial and temporal contexts. The K-T boundary is a particularly apt example to test the limits of this method to resolve ongoing controversies over the age of the Chicxulub impact and whether this impact is indeed responsible for the K-T boundary mass extinction. Two impact markers, the Ir anomaly and the Chicxulub impact spherule deposits, are ideal because of their widespread presence. Evaluation of their stratigraphic occurrences reveals the potential and the complexities inherent in using these impact signals. For example, in the most expanded sedimentary sequences: (1) The K-T Ir anomaly never contains Chicxulub impact spherules, whereas the Chicxulub impact spherule layer never contains an Ir anomaly. (2) The separation of up to 9 m between the Ir anomaly and spherule layer cannot be explained by differential settling, tsunamis, or slumps. (3) The presence of multiple spherule layers with the same glass geochemistry as melt rock in the impact breccia of the Chicxulub crater indicates erosion and redeposition of the original spherule ejecta layer. (4) The stratigraphically oldest spherule layer is in undisturbed upper Maastrichtian sediments (zone CF1) in NE Mexico and Texas. (5) From central Mexico to Guatemala, Belize, Haiti, and Cuba, a major K-T hiatus is present and spherule deposits are reworked and redeposited in early Danian (zone P1a) sediments. (6) A second Ir anomaly of cosmic origin is present in the early Danian. This shows that although impact markers represent an instant in time, they are subject to the same geological forces as any other marker horizons—erosion, reworking, and redeposition—and must be used with caution and applied on a regional scale to avoid artifacts of redeposition. For the K-T transition, impact stratigraphy unequivocally indicates that the Chicxulub impact predates the K-T boundary, that the Ir anomaly at the K-T boundary is not related to the Chicxulub impact, and that environmental upheaval continued during the early Danian with possibly another smaller impact and volcanism.