Results 201 to 210 of about 33,062 (329)
Diversity of coatings on hydrothermal vent gastropods. [PDF]
Bonk A +5 more
europepmc +1 more source
Search for impact ejecta at the Paleocene–Eocene boundary
Abstract Almost 10 years have passed since microtektites and microkrystites were reported for the Paleocene–Eocene (P–E) boundary in drill cores and outcrop in New Jersey and in ODP Hole 1051B in the western North Atlantic. The glassy spherules were interpreted to reflect an impact trigger for the Paleocene–Eocene Thermal Maximum (PETM).
Birger Schmitz +6 more
wiley +1 more source
Ammonite survival across the Cretaceous-Paleogene boundary confirmed by new data from Denmark. [PDF]
Machalski M +5 more
europepmc +1 more source
ABSTRACT The Paleoproterozoic Talvivaara mudstone is a very large sulfidic Ni‐Co deposit that records enhanced organic matter accumulation during the global Shunga Event. Here, rock geochemistry and microscale S and Fe isotope composition of in situ pyrrhotites and pyrites are studied in well‐characterised, well‐preserved drill core samples.
Raimo Lahtinen +3 more
wiley +1 more source
The Seismic Expression of Core Complex‐Style Extensional Detachment Faults in Rifted Margins
ABSTRACT The identification of core complex‐style extensional detachment faults (CCDFs) in rifted margins is crucial for accurately restoring their stratigraphic and thermal histories. Yet recognising CCDFs in seismic reflection images is challenging due to their faint topographic expression; the lack of associated abrupt offset in seismic reflections;
Pauline Chenin +3 more
wiley +1 more source
Rapid isotopic exchange in mineralogically unaltered coral skeletons. [PDF]
Stolarski J +4 more
europepmc +1 more source
ABSTRACT Annual tree‐ring oxygen‐isotope values were measured from sections of two fossil logs of Picea mariana (black spruce) recovered from last glacial maximum proglacial sediment in Illinois, USA. Collectively, the specimens date from ca. 25,130 to 24,720 cal years BP.
Dana M. Labotka +2 more
wiley +1 more source
Ductile Extrusion Triggered by Continental Collision in NE Brazil
ABSTRACT The Borborema Province in northeastern Brazil hosts one of the world's largest strike‐slip shear zone networks, active during the late Neoproterozoic assembly of West Gondwana. Whether these shear zones initiated during active continental collision or as a post‐orogenic response to far‐field stresses remains debated.
L. R. Tesser +6 more
wiley +1 more source
Tetrapod species-area relationships across the Cretaceous-Paleogene mass extinction. [PDF]
Close RA, Reijenga BR.
europepmc +1 more source

