Results 61 to 70 of about 59,970 (323)

Hindlimb morphology of Palaeotis suggests palaeognathous affinities of the Geranoididae and other “crane-like” birds from the Eocene of the Northern Hemisphere [PDF]

Acta Palaeontologica Polonica, 2019
The early/middle Eocene Palaeotis weigelti is a flightless bird, which occurs in the fossil localities Messel and Geiseltal (Germany). The species is assigned to the Palaeognathae and some authors considered it to be a stem group representative of the ...
Gerald Mayr
doaj   +1 more source

Paleocene orthophragminids from the Lakadong Limestone, Mawmluh Quarry section, Meghalaya (Shillong, NE India). Implications for the regional geology and paleobiogeography [PDF]

, 2018
The late Paleocene orthophragminids, hitherto poorly known from the Himalayan foreland basins, are studied from the Lakadong Limestone in Meghalaya, northeastern India, in order to establish a systematic, biostratigraphic, and paleobiogeographical ...
Barattolo, Filippo, Drobne, Katica, Pereira, Christer, Pignatti, Johannes, Saraswati, Pratul Kumar, Yücel, Ali Osman, Özcan, Ercan   +6 more
core   +1 more source

Amber from the Triassic to Paleogene of Australia and New Zealand as exceptional preservation of poorly known terrestrial ecosystems

Scientific Reports, 2020
The Northern Hemisphere dominates our knowledge of Mesozoic and Cenozoic fossilized tree resin (amber) with few findings from the high southern paleolatitudes of Southern Pangea and Southern Gondwana.
J. Stilwell, Andrew Langendam, C. Mays, Lachlan J. M. Sutherland, A. Arillo, D. Bickel, William T. De Silva, Adele H. Pentland, G. Roghi, G. Price, D. Cantrill, A. Quinney, E. Peñalver   +12 more
semanticscholar   +1 more source

Optimization of the complex of geophysical well investigations in argillite-like paleogene deposits by the example of oil fields of Eastern Ciscaucasia

Наука. Инновации. Технологии, 2022
The paper presents the analysis findings of informativity of geophysical methods for solving the problem of searching collectors saturated with oil and gas in the Paleogene on the territory of Eastern Ciscaucasia.
Saipi Amiranovich Dudaev, Abdul-Gapur Guseinovich Kerimov, Vladimir Alekseevich Gridin, Boris Fyodorovich Galay   +3 more
doaj  

On the origin of the North Pacific arcs [PDF]

, 2004
We present a new hypothesis that relates global plate tectonics to the formation of marginal basins, island arcs, spreading ridges and arc-shaped mountain belts around the North Pacific Ocean.
Fornós, Joan J., Gelabert Ferrer, Bernardí, Rodríguez Perea, Antonio, Sàbat i Montserrat, Francesc   +3 more
core   +3 more sources

Characteristics of reservoir space and sweet spot evaluation of shale oil in the second member of Paleogene Funing Formation in Subei Basin: a case study of well QY1 in Qintong Sag

Shiyou shiyan dizhi
The second member of the Paleogene Funing Formation in the Subei Basin is a key production layer for conventional oil and an optimal target for the exploration and development of continental shale oil in East China.
Yuqiao GAO, Xiao CAI, Wei XIA, Yanyan WU, Yunyan CHEN   +4 more
doaj   +1 more source

Lithospheric 3D gravity modelling using upper-mantle density constraints: Towards a characterization of the crustal configuration in the North Patagonian Massif area, Argentina [PDF]

, 2017
The North Patagonian Massif is an Argentinean plateau that has an average height of 1200 m and stands from 500 to 700 m above the neighboring areas. During Paleogene, it suffered a sudden uplift of more than 1200 m without noticeable internal deformation;
Aragon, Eugenio, Gómez Dacal, María Laura, Ponce, Alexis Daniel, Scheck Wenderoth, Magdalena, Sippel, Judith, Tocho, Claudia   +5 more
core   +2 more sources

Formation conditions of shale oil and favorable targets in the second member of Paleogene Funing Formation in Qintong Sag, Subei Basin

Shiyou shiyan dizhi, 2021
The favorable targets of shale oil exploration were optimized based on the analyses of hydrocarbon generation, reservoir conditions and oil content of the shale sections in the second member of Paleogene Funing Formation in the Qintong Sag, Subei Basin ...
Lin ZAN, Weifeng LUO, Yanling YIN, Xiaoming JING   +3 more
doaj   +1 more source

Testing the impact of diagenesis on the delta O-18 and delta C-13 of benthic foraminiferal calcite from a sediment burial depth transect in the equatorial Pacific [PDF]

, 2013
Stable oxygen and carbon isotope (δ18O and δ13C) values measured in foraminiferal calcite are one of the primary tools used in paleoceanography. Diagenetic recrystallisation of foraminiferal calcite can act to reset primary isotopic values but its ...
Edgar, Kirsty M., Paelike, Heiko, Wilson, Paul A.   +2 more
core   +4 more sources

Enrichment types and hydrocarbon composition characteristics of shale oil in the northern part of Dongpu Sag, Bohai Bay Basin: a case study of the third member of Paleogene Shahejie Formation of well Wen 410

Shiyou shiyan dizhi, 2022
To reveal the oil-bearing characteristics and hydrocarbon composition of shale oils in the third member of Shahejie Formation in the northern part of Dongpu Sag, Bohai Bay Basin, analysis and testing were carried out by the means of frozen-craching ...
Junying LENG, Menhui QIAN, Kun LU, Ershe XU, Yongshui ZHOU, Yunjie BAO, Zhiming LI, Qigui JIANG   +7 more
doaj   +1 more source