Results 81 to 90 of about 15,420 (250)

The Cretaceous/Paleogene Boundary Deposits on Gorgonilla Island

, 2019
A ca. 20 mm thick spherule bed representing Chicxulub impact ejecta deposits and marking the Cretaceous/Paleogene (K/Pg) boundary was recently discovered on Gorgonilla Island (Gorgona National Natural Park, Pacific of Colombia). This discovery represents
Rodríguez, José Vicente,, Gilabert, Vicente, Arenillas, Ignacio, Arenillas, Ignacio,, Gilabert, Vicente,, Vajda, Vivi, Rodríguez, José Vicente, Arz, José Antonio,, Renne, Paul,, Vajda, Vivi,, Arz, José Antonio, Bermúdez, Hermann, Renne, Paul, Bermúdez, Hermann,   +13 more
core   +1 more source

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, EarlyView.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

Milankovitch Cyclicity and Stable Isotope Calibration in the Paleogene (invited)

, 2003
Significant progress has been made over the last decade in the extension of astronomically calibrated geological time scales for the Neogene (Hilgen et al., 1999, Shackleton et al., 1999).
Pälike, H., Shackleton, N.J.
core  

Search for impact ejecta at the Paleocene–Eocene boundary

Meteoritics &Planetary Science, EarlyView.
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, Yue Cai, Shiyong Liao, Victoriano Pujalte, Ting Ruan, Robert P. Speijer, Ellen Thomas   +6 more
wiley   +1 more source

Characteristics and geological significance of escaping gas rich in natural hydrogen from pilot well BYP5 cores of lower sub-member of third member of Shahejie Formation in Zhanhua Sag, Bohai Bay Basin

Shiyou shiyan dizhi
The pilot well BYP5 is a cored well drilled to explore the oil and gas bearing properties of the highly thermally evolved lower sub-member of the third member of the Paleogene Shahejie Formation in the Bonan deep sag of the Zhanhua Sag, Bohai Bay Basin ...
Zhiming LI, Huimin LIU, Peng LIU, Menhui QIAN, Tingting CAO, Zhenjing DU, Zheng LI, Youshu BAO, Qigui JIANG, Ershe XU, Zhongliang SUN, Yahui LIU   +11 more
doaj   +1 more source

Geochemical investigation of impactites from the Boltysh impact structure and possible relationship to early Danian sediments from the Umbria–Marche Basin, Italy

Meteoritics &Planetary Science, EarlyView.
Abstract Within the Danian Scaglia Rossa Formation appears a regionally correlatable horizon cutting across multiple sections and outcrops within the Umbria–Marche Basin of NE Italy, where it is intercalated with uniform pelagic carbonate successions. This horizon is called “ALE layer” and has tentatively been interpreted as a fine‐grained volcanic ash.
Toni Schulz, Sophia Wernitznig, Christian Koeberl, Bérengère Mougel, Alessandro Montanari, Frédéric Moynier   +5 more
wiley   +1 more source

The Paleogene of the Central-Eastern Veneto region (Northeastern Italy), post-conference field trip guidebook, July 5-6, 2014, Climatic and Biotic Events of the Paleogene, CBEP 2014

, 2014
We illustrate the main scientific results of the authors on the Paleogene outcrops from the Veneto region, visited during the CBEP 2014 post-conference field ...
Boscolo Galazzo F., Capraro L., Rio D., LUCIANI, Valeria, Giusberti L., Papazzoni C. A., Fornaciari E., Agnini C.   +7 more
core  

Documenting Translation and Vertical-Axis Rotations using Paleomagnetic Techniques along the Panama Isthmus: Preliminary Results

Revista de I + D Tecnológico, 2012
Along the Isthmus of Panama 23 paleomagnetic sites were sampled in order to determine preliminary block rotations and paleolatitudinal movements. The lithology selected for this research corresponds to volcanic and sedimentary rocks with ages ranging ...
César Silva, Germán Bayona, Abraham Osorio, Camilo Montes, Carlos Jaramillo, Luis Santamaría   +5 more
doaj  

(Table 5) Mineralogy of early Paleogene sediments of DSDP Hole 27-259, Perth Abyssal Plain off Western Australia

, 2007
(Table 5) Mineralogy of early Paleogene sediments of DSDP Hole 27-259, Perth Abyssal Plain off Western ...
Blake, Kevin L, Gerald Roy Dickens (6960560), Hancock, Haidi JL, Ellen Thomas (6963716), Dickens, Gerald Roy, Haidi JL Hancock (7907315), Kevin L Blake (7907318), Thomas, Ellen   +7 more
core   +1 more source

(Table 1) Carbonate content in early Paleogene sediments from DSDP Hole 27-259, Perth Abyssal Plain off Western Australia

, 2007
(Table 1) Carbonate content in early Paleogene sediments from DSDP Hole 27-259, Perth Abyssal Plain off Western ...
Blake, Kevin L, Gerald Roy Dickens (6960560), Hancock, Haidi JL, Ellen Thomas (6963716), Dickens, Gerald Roy, Haidi JL Hancock (7907315), Kevin L Blake (7907318), Thomas, Ellen   +7 more
core   +1 more source