Results 81 to 90 of about 59,970 (323)

Clay mineralogical evidence for mid-latitude terrestrial climate change from the latest Cretaceous through the earliest Paleogene in the Songliao Basin, NE China

Cretaceous research (Print), 2020
. From the latest Cretaceous (late Campanian to Maastrichtian, ~ 76−66 Ma) through the earliest Paleogene, a fluctuating greenhouse climate prevailed and climatic changes were linked to catastrophic geological events and massive biotic extinction ...
Yuanhong Gao, You-feng Gao, D. Ibarra, Xiaojing Du, T. Dong, Zhifei Liu, Chengshan Wang   +6 more
semanticscholar   +1 more source

Organic Geochemical Characterization and Exploration Prospects of Hydrocarbon Source Rocks in Nepal

Energy Science &Engineering, EarlyView.
It provides a more detailed introduction to the current situation of oil and gas exploration in Nepal, as well as the properties and distribution characteristics of source rocks. ABSTRACT This study aims to evaluate the hydrocarbon generation potential and exploration prospects of hydrocarbon source rocks in the Dailekh to Dang–Tansen area of Nepal ...
Guoqiang Zhang, Rui Wang, Yinglie Li, Xinhe Wu, Yanming Qu   +4 more
wiley   +1 more source

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 infill 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

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

Geological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao, Wen Chen, Jingbo Sun, Ze Shen, Jie Zhang   +4 more
wiley   +1 more source

Thermochronologic Constraints on the Extensional History of the Ibex Hills, Southeastern Black Mountains, Death Valley, California

Geological Journal, EarlyView.
A. Modeled T‐t paths for samples in the northern Ibex Hills, showing steady cooling throughout much of the Cenozoic, until rapid Miocene cooling. B. Weighted mean paths for each sample in this study. Note that all show a rapid cooling event at or just after 10 Ma, which is interpreted to represent exhumation as a result of regional extenstion ...
Zachariah D. Fleming
wiley   +1 more source

Geochemical characteristics and development models of salinized lacustrine mixed-source rock: a case study of upper member of Lower Ganchaigou Formation in Yingxiongling structural belt, western Qaidam Depression

Shiyou shiyan dizhi
This study aims to systematically evaluate the hydrocarbon generation potential of the saline lacustrine mixed-source rocks in the upper member of the Lower Ganchaigou Formation in the Yingxiongling structural belt of the Western Qaidam Depression in the
Fei ZHOU, Zeyu SHAO, Jing ZHANG, Guo CHEN, Hailong ZHANG, Yaohui XU, Wanxin HAO, Wei SHA, Yunzhao WU, Hao ZHANG   +9 more
doaj   +1 more source

The Paleogene Period [PDF]

, 2012
ABSTRACT All Paleocene stages (i.e., Danian, Selandian and Thanetian) have formally ratified definitions, and so have the Ypresian and Lutetian Stages in the Eocene, and the Rupelian Stage in the Oligocene. The Bartonian, Priabonian and Chattian Stages are not yet formally defined.
N. Vandenberghe, F.J. Hilgen, R.P. Speijer, J.G. Ogg, F.M. Gradstein, O. Hammer, C.J. Hollis, J.J. Hooker   +7 more
openaire   +3 more sources

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

PLANTS, PEOPLE, PLANET, EarlyView.
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo, Surangi W. Punyasena, Daurys de Alba, Roxana Alveo, Angelica Arcila, Jorge Bermudez, Jonatan Bustos, Dayenari Caballero‐Rodriguez, Karen Cardenas, David Caro, Francy Carvajal, Ivonne Marcela Castañeda, Shara Chaves, Carlos D'Apolito, Andres Diaz‐Jaramillo, Laura Diaz, Luisa Gomez, Mauricio León‐Carreño, Paula Lopera, Maria Alejandra Lopez, Priscila Lopez, Luke Mander, Jhonatan Martínez Murcia, Carlos Moreno, Enrique Moreno, Enrique Neyra, Brenda Orosco, Jhon Ortiz, Natalia Ossa, Natalia Ovalle, Carolina Ovalle, Angelo Plata, Ingrid Romero, Bruno Scudeiro, Silane A. F. da Silva Caminha, Axel Tejada‐Fajardo, Vinicius Do Valle, Thiago Wood   +37 more
wiley   +1 more source

Occurrence and recoverability of tight oil in Paleogene Funing Formation, Subei Basin

Shiyou shiyan dizhi, 2020
The shale, interlayers and adjacent carbonate rocks and siltstones in the second and fourth members of the Paleogene Funing Formation in the Subei Basin were studied using multi-temperature pyrolysis and NMR.
Jinning PENG, Qi QIU, Dongyan WANG, Zhiming LI, Jianhui ZHU, Shiyou LIANG, Yingli WU   +6 more
doaj   +1 more source

Catalysts for change: Museum gardens in a planetary emergency

PLANTS, PEOPLE, PLANET, EarlyView.
Natural history museums are often seen as places with indoor galleries full of dry‐dusty specimens, usually of animals. But if they have gardens associated with them, museums can use living plants to create narratives that link outside spaces to inside galleries, bringing to life the challenges facing biodiversity.
Ed Baker, Paul Kenrick, Sandra Knapp, Tom McCarter, John Tweddle   +4 more
wiley   +1 more source