Results 61 to 70 of about 19,899 (236)

Quantitative foraminiferal and palynomorph biostratigraphy of the Paleogene in the southwestern Barents Sea [PDF]

, 2004
The stratigraphic distribution of both foraminifera and dinoflagellate cysts is recorded from the Paleocene to Eocene Torsk Formation in 12 petroleum exploration wells drilled in the southwestern Barents Sea.
Johnson, K. , K., Kaminski, M.A., Nagy, J., Gradstein, F.M.   +3 more
core  

Paleogene – Neogene

During the late Danian-Selandian Laramide phase, open-marine carbonate deposition of the Late Cretaceous and earliest Paleocene was replaced by clastic sediment infll of the Southern North Sea Basin. The Laramide phase, associated with domal uplift and subsidence of Mesozoic grabens, led to a break in sedimentation and reworking of Upper Cretaceous ...
Munsterman, D.K., Donders, T.H., Houben, A.J.P., Veen, J.H. ten, Wesselingh, F.   +4 more
openaire   +2 more sources

Characteristics of Gravity Flow Deposits in the Benin Basin (Benin) and Implications for Oil and Gas Exploration

Geological Journal, EarlyView.
This study reveals that the underexplored Benin Basin features a narrow shelf and steep slope, which promoted the development of multi‐phase, stacked channel‐lobe complexes. These gravity flow deposits, further enhanced by bottom current reworking, reveal a significant undiscovered Upper Cretaceous stratigraphic play with considerable petroleum ...
Liu Zuodong, Wen Zhixin, Song Chenpeng, Wang Xueling, Shen Yiping   +4 more
wiley   +1 more source

Local Structures of Se and Br in Cretaceous–Paleogene Boundary Sediments and Concentration Effects of Ferrihydrite Originating From Impact Ejecta

Geological Journal, EarlyView.
Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai, Akira Yoshiasa, Ginga Kitahara, Makoto Tokuda, Satoko Ishimaru, Toshihiro Moriga   +5 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

Miocene to Quaternary Tectonostratigraphic Evolution of the Northern Section of the Burdur‐Fethiye Shear Zone, South‐Western Türkiye

Geological Journal, EarlyView.
New zircon ages reveal that lacustrine sedimentation initiated in the Late Miocene (Messinian), revising earlier Pliocene age assignments. The study results support the interpretation of the northern BFSZ as a broad left‐lateral transtensional shear zone rather than a discrete sinistral fault or simple extensional graben array.
İrem Elitez, Gürsel Sunal, Cenk Yaltırak, İsak Yılmaz   +3 more
wiley   +1 more source

Leg 199 summary [PDF]

, 2002
Ocean Drilling Program (ODP) Leg 199, "The Paleogene Equatorial Transect" (Sites 1215-1222), was designed to study the evolution of the equatorial Pacific current and wind system as Earth went from maximum Cenozoic warmth to initial Antarctic glaciations.
Lyle, M., Vanden Berg, M.D., Quintin, L., Wilson, P.A., Backman, J., Pälike, H., Coxall, H.K., Janecek, T.R., Raffi, I., Moore, T.C., Nomura, R., Nigrini, C.A., Faul, K., Tripati, A.K., Parés, J.M., Rea, B.R., Kruse, S., Wade, B.S., Nishi, H., Lanci, L., Hovan, S.A., Lear, C.H., Gaillot, P.A., Knoop, P., Busch, W.H., Norris, R.D., Rea, D.K., Steiger, T.H., Parés J. M., Wilson P. A., Busch W. H., Gaillot P., Rea B. R., Kruse S., RAFFI, Isabella, Nomura R., Lyle M. W., Tripati A., Lear C., Nigrini C. A., Moore T. C., Norris R. D., Knoop P., Van Den Berg M. D., Hovan S. A., Janecek T. R., Backman J., Pälike H., Steiger T. H., Coxall H. K., Nishi H., Rea D. K., Faul K., Lanci L., Wade B., Quintin L   +55 more
core   +1 more source

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  

Mainland diversification and recent island lineages in the reduviid genus Tapirocoris: an integrative taxonomic framework with four new species

Insect Science, EarlyView.
Using an integrative taxonomic framework that combines COI DNA barcodes, geometric morphometrics and phylogeography, we revise the assassin bug genus Tapirocoris and recover seven well‐supported species, including four newly described cryptic species.
Ping Zhao, Qinpeng Liu, Minmin Ou, Huaiyu Liu, Yingqi Liu, Jianyun Wang, Miao Yang, Zhuo Chen, Wanzhi Cai   +8 more
wiley   +1 more source

(Table 6) Magnetostratigraphic calibration and stratigraphic level of Paleogene planktonic foraminifer events of ODP Hole 120-749B

, 1992
(Table 6) Magnetostratigraphic calibration and stratigraphic level of Paleogene planktonic foraminifer events of ODP Hole 120 ...
Berggren, William A, William A Berggren (6886781)   +1 more
core   +1 more source