Results 21 to 30 of about 2,106 (218)

Lower miocene stratigraphy of the Eastern Paratethys: Problems and state of the art [PDF]

Geološki Anali Balkanskoga Poluostrva
The Lower Miocene regional stages of the Eastern Paratethys, the Caucasian, Sakaraulian, and Kozakhurian, have been recognized in different structural facies zones of the basin and have no reliable universal stratigraphic basis for defining their ...
Golovina Larisa, Aleksandrova Galina, Popov Sergey, Bylinskaya Marina, Koiava Kakhaber, Pinchuk Tatyana   +5 more
doaj   +1 more source

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

THE PROTECTION OF JURASSIC SITES AND FOSSILS: CHALLENGES FOR GLOBAL JURASSIC SCIENCE (INCLUDING A PROPOSED STATEMENT ON THE CONSERVATION OF PALAEONTOLOGICAL HERITAGE AND STRATOTYPES)

Rivista Italiana di Paleontologia e Stratigrafia, 2004
Effective geoconservation systems are crucial to the activities of subcommissions of the International Subcommission on Stratigraphy, such as the Jurassic Subcommission (ISJS).
KEVIN N. PAGE
doaj   +1 more source

EVOLUTION OF THE PSEUDOSTAFFELLIDAE IN THE BASHKIRIAN(MIDDLE CARBONIFEROUS)

Rivista Italiana di Paleontologia e Stratigrafia, 2003
The origin and evolution of the family Pseudostaffellidae is discussed, based on the study of foraminifers from the stratotype and reference sections of the Bashkirian stage of the Southern Urals.
ELENA I. KULAGINA, ZINAIDA A. SINITSYNA
doaj   +1 more source

Quantification of the Eocene–Oligocene transition in the Zagros Foreland Basin: Palaeogeographic control on sequence architecture and tectonic signal preservation

The Depositional Record, Volume 12, Issue 3, June 2026.
New bio‐sequence framework for the Eocene–Oligocene transition in Zagros. Geochemical data validate basin depth control on SB1 vs. SB2 boundaries. SEM‐EDS analyses confirm subaerial exposure versus continuous deposition. Sensitivity analysis quantifies sub‐10% uncertainty in stratigraphic interpretations. Resolves the Pyrenean orogeny's variable impact
Sahar Rokni, Vahid Ahmadi, Seyed Hamid Vaziri, Ali Aghanabati, Pooria Kianoush   +4 more
wiley   +1 more source

Le Gargasien (Aptien moyen) de Cassis-La Bédoule (stratotype historique de l'Aptien inférieur, SE France) : localisation géographique et corrélations stratigraphiques

Carnets de Géologie, 2004
Dans le stratotype historique du sous-étage inférieur de l'Aptien (Bédoulien), les couches gargasiennes sus-jacentes affleuraient encore largement au milieu du siècle dernier, au niveau de nombreuses carrières s'étendant selon une bande orientée NNE-SSW,
Renard Maurice, Bellier Jean-Pierre, Moullade Michel, Tronchetti Guy, Kuhnt Wolfgang   +4 more
doaj  

Loess Studies in Aotearoa New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway, David J. Lowe, Bradley J. Pillans, Peter C. Almond, Alan S. Palmer   +4 more
wiley   +1 more source

Foraminifers in the Holkerian Stratotype, regional substage in Britain : key taxa for the Viséan subdivision [PDF]

, 2022
Foraminiferal revision of the Holkerian Stratotype of Britain at Barker Scar, Holker Hall, south Cumbria, UK, allows the subdivision of the section into the Cf4δ, Cf5α and Cf5β subzones (the latter being further subdivided into lower Cf5β1 and upper ...
Cozar, Pedro, Hounslow, Mark W, Somerville, Ian D   +2 more
core  

Redefinition of the Global Stratotype Section and Point (GSSP) and new Standard Auxiliary Boundary Stratotype (SABS) for the base of Wuchiapingian Stage (Lopingian Series, Permian) in South China [PDF]

, 2023
The Global Stratotype Section and Point (GSSP) of the base-Wuchiapingian Stage was formally ratified at the Penglaitan section in South China in 2005.
Shu-zhong Shen, Wu, Qiong, Zhang, Hua, Xi-yang Zhang, Zheng, Quan-feng, Zhang, Fei-fei, M. Henderson, Dai, Yu, Douglas H. Erwin, Quan-feng Zheng, Jahandar Ramezani, Charles, Hua Zhang, Mei, Shi-long, Chen, Jun, Henderson, Charles, M., Shen, Shu-zhong, Hai-peng Xu, Wang, Yue, Dong-xun Yuan, Ramezani, Jahandar, Pan, Yong-xin, Qian Li, Lucia Angiolini, Qiong Wu, Shuhan Zhang, Min Zhang, Wang, Wen-qian, Zhang-shuai Hou, Zhang, Shu-han, Xu, Hai-peng, Shi-long Mei, Yi-chun Zhang, Yong-xin Pan, Yu Dai, Mu, Lin, Hou, Zhang-shuai, Yuan, Dong-xun, Henderson, Charles M., Xiang-dong Wang, Jun Chen, Angiolini, Lucia, Zhang, Yi-chun, Erwin, Douglas H., Wen-qian Wang, Wang, Xiang-dong, Zhang, Min, Li, Qian, Fei-fei Zhang, Stephenson, Michael, Zhang, Xi-yang, Yue Wang, Lin Mu, Michael Stephenson   +53 more
core   +1 more source

Stratotypical sections of the Upper Ordovician Khoreyver basin (Timan-Pechora region) [PDF]

Нефтегазовая геология: Теория и практика
Descriptions of stratotypic and hypostratotypic sections of the Upper Ordovician of the Khoreyver Basin are given. The stratotypes of the Malomakarikha, Bagan and Muker Formations were established in the section of the Zapadno-Makariha (Srednemakarikha ...
Shamsutdinova L.L., Nikiforova L.V., Dmitrieva T.V., Sokiran E.V., Myasnikova M.A., Tolmacheva T.Yu.   +5 more
doaj