Results 21 to 30 of about 105,582 (310)

The fossil record of early tetrapods: worker effort and the end-Permian mass extinction [PDF]

, 2010
It is important to understand the quality of the fossil record of early tetrapods (Tetrapoda, minus Lissamphibia and Amniota) because of their key role in the transition of vertebrates from water to land, their dominance of terrestrial faunas for over ...
Bebber D.F., Benton M.J., Benton M.J., Benton M.J., Emma L. Bernard, Fara E., Fara E., Flessa K.W., Jaeger G.F., James E. Tarver, Marcello Ruta, Maxwell W.D., Michael J. Benton, Peters S.E., Raup D.M., Schoch R.R., Sepkoski J.J., Valentine J.W., Wickström L.M.   +18 more
core   +3 more sources

Key structural periods and Permian tight gas accumulation response in Hangjinqi area, Ordos Basin

Shiyou shiyan dizhi, 2021
Critical tectonic period is a critical time point that characterizes the genetic connection and causal relation (accumulation response) between tectonic effect and oil/gas accumulation in large superposition basins, it is also an important "window" for ...
Kaiping LUO, Fan YANG, Yongde LU, Zhaoqian LIU, Yong TANG   +4 more
doaj   +1 more source

Pennsylvanian-Early Triassic stratigraphy in the Alborz Mountains (Iran) [PDF]

, 2009
New fieldwork was carried out in the central and eastern Alborz, addressing the sedimentary succession from the Pennsylvanian to the Early Triassic.
Al-Belushi, Alda Nicora, Altiner, Angiolini, Assereto, Baghbani, Baghbani, Balme, Bensh, Besse, Boncheva, Broglio Loriga, Brönnimann, Brönnimann, Chateauneuf, Chernyshev, Dario Sciunnach, Davydov, Elliott, Fantini Sestini, Fantini Sestini, Fantini Sestini, Fantini Sestini, Fantini Sestini, Feinberg, Flügel, Flügel, Flügel, Foster, Fraiser, Gaetani, Gansser, Garzanti, Ghavidel-Syooki, Glaus, Grant, Gregory D. Price, Hammer, Haq, Helby, Heravi, Hirsch, Holzer, Horacek, Insalaco, Isbell, Jafar Sabouri, Jenny, Jenny, Jenny, Jin, Jin, Kalashnikov, Katsumi Ueno, Ketat, Khaler, Kireeva, Kobayashi, Korte, Lasemi, Leven, Leven, Leven, Leven, Leven, Lucia Angiolini, Lys, Maurizio Gaetani, Meissami, Meissami, Michael H. Stephenson, Nazemi, Posenato, Roberto Rettori, Ruban, Rui, Ruttner, Savary, Schellwien, Sciunnach, Seyed-Emami, Shapiro, Sharland, Shi, Stampfli, Stephenson, Stephenson, Ueno, Van Wagoner, Wardlaw, Zaninetti, Zaninetti, Zolotova   +92 more
core   +2 more sources

Polish Palaeobotany: 750 Million Years of Plant History as Revealed in a Century of Studies. Palaeozoic Macrofossils

Acta Societatis Botanicorum Poloniae, 2022
During the Palaeozoic Era, plants conquered the land and covered greater and greater areas from coastal lowlands to highlands. Palaeobotanical data based on macroremains from Polish Palaeozoic strata complete and enrich the picture of these processes ...
Grzegorz Pacyna, Maria Barbacka
doaj   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

Lethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido, Matteo Sposato, Giuseppe Palladino, Alessandro Vescogni, Domenico Miriello   +4 more
wiley   +1 more source

Climate simulation of the latest Permian: Implications for mass extinction [PDF]

, 2005
This report presents the results of climate modeling research which indicates that elevated levels of carbon dioxide in the atmosphere at the end of the Permian period led to climatic conditions inhospitable to both marine and terrestrial life.
Benton, Berner, Berner, Campbell, Christine A. Shields, Chumakov, Grice, Holser, Hotinski, Isozaki, Jeffrey T. Kiehl, Kidder, Kutzback, Rees, Renne, Retallack, Retallack, Ryskin, Taylor, Wang, Ward, Wignall, Zhang   +22 more
core   +1 more source

Tectonic history of the South Tannuol Fault Zone (Tuva region of the northern Central Asian Orogenic Belt, Russia) : constraints from multi-method geochronology [PDF]

, 2020
In this study, we present zircon U/Pb, plagioclase and K-feldspar Ar-40/Ar-39 and apatite fission track (AFT) data along the South Tannuol Fault Zone (STFZ).
De Grave, Johan, Mikhailova, Polina, Nachtergaele, Simon, Van Ranst, Gerben, Vetrov, Evgeny, Vetrova, Natalia, Zhimulev, Fedor   +6 more
core   +1 more source

Trace Fossils in Permian Rocks of English Riviera UNESCO Global Geopark [PDF]

Geoconservation Research, 2021
The Permian breccias, conglomerates and sandstones of the English Riviera UNESCO Global geopark were deposited in quite harsh, desert environments just north of the Permian Equator.
Malcolm Hart, Christopher Smart
doaj   +1 more source

Complex examination of the Upper Paleozoic siliciclastic rocks from southern Transdanubia, SW Hungary—Mineralogical, petrographic, and geochemical study [PDF]

, 2007
A vertical section of Upper Paleozoic sandstones from southern Transdanubia (Mecsek-Villány area, Tisza mega-unit, Hungary) has been analyzed for major and trace elements, including rare earth elements (REEs).
Á, Arribas, Awdankiewicz, Balogh, Bauluz, Bhatia, Bhatia, Biscaye, Brü, Cox, Csontos, Csontos, Csontos, Cullers, Cullers, Fazekas, Fedo, Gaillardet, Garver, Golonka, Haas, Huang, Kü, Lee, Nagy, Nesbitt, Noda, Pearce, Preston, Varga, Varga, Varga, Varga, Watanabe, Willan, Zimmermann   +35 more
core   +1 more source

Report of Investigations No. 123 Petroleum Potential of the Palo Duro Basin, Texas Panhandle [PDF]

, 1982
UT ...
Dutton, Shirley P., Goldstein, Arthur G., Ruppel, Stephen C.   +2 more
core   +1 more source