Results 81 to 90 of about 37,171 (241)

Uplift, Climate and Biotic Changes at the Eocene-Oligocene Transition in Southeast Tibet [PDF]

, 2018
The uplift history of southeastern Tibet is crucial to understanding processes driving the tectonic evolution of the Tibetan Plateau and surrounding areas.
Deng, Cheng-Long, Deng, Wei-Yu-Dong, Huang, Jian, Huang, Yong-Jiang, Jia, Lin-Bo, Li, Shi-Hu, Li, Shu-Feng, Liu, Jia, Sherlock, Sarah, Spicer, Robert A., Su, Tao, Valdes, Paul J., Wang, Li, Xu, He, Zhang, Shi-Tao, Zhou, Zhe-Kun   +15 more
core   +3 more sources

The predatory behavior of ants: an impressive panoply of morphological adaptations

Insect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean, Xim Cerdá, Jérôme Orivel, Frédéric Azémar, Alexander L. Wild, Bruno Corbara, Axel Touchard   +6 more
wiley   +1 more source

Oil-bearing potential and hydrocarbon occurrence characteristics of shale in Paleogene Hetaoyuan Formation in Biyang Sag, Nanxiang Basin

Shiyou shiyan dizhi
High-quality lacustrine shale beds within the Paleogene Hetaoyuan Formation in the Biyang Sag, Nanxiang Basin, exhibit significant potential for shale oil resources.
Yunyun JIN, Chuxiong LI, Yong WANG, Yongxin YAN, Xi LUO, Shuaibo HUANG, Zhiming LI, Yuanyuan ZHOU, Zhongliang SUN, Yahui LIU, Mengyao JIA, Junying LENG   +11 more
doaj   +1 more source

Gravity-flow dominated sedimentation on the Buda paleoslope (Hungary): Record of Late Eocene continental escape of the Bakony unit [PDF]

, 1992
The Upper Eocene sequence of the Buda Hills consists of fluvial and shallow marine conglomerates, sandstones, bioclastic shallow-water limestone, marlstone and pelagic Globigerina marl.
Fodor, László, Fogarasi, Attila, Kázmér, Miklós, Magyari, Árpád   +3 more
core  

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

Integrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez, Santiago Hernández Del Pino, Esperanza Cerdeño, Manuel Hernández Fernández, Laura Domingo   +4 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

Extent and character of early tertiary penetrative deformation, Sonora, Northwest Mexico [PDF]

Reconnaissance field work has led to the recognition of extensive Early Tertiary gneiss and schist which are distinguished by weakly developed to highly conspicous northeast to east-trending stretching lineation commonly accompanied by low-dipping ...
Anderson, T. H.
core   +1 more source

Testing the Cenozoic multisite composite δ¹⁸O and δ¹³C curves: new monospecific Eocene records from a single locality, Demerara Rise (Ocean Drilling Program Leg 207) [PDF]

, 2006
Until recently, very few high-quality deep ocean sedimentary sections of Eocene age have been available. Consequently, our understanding of Eocene paleoceanography has become heavily reliant on “composite” records patched together from multiple sites in ...
Arthur, Aubry, Barrera, Barrera, Barron, Belanger, Bemis, Berggren, Berggren, Berner, Berner, Bice, Bice, Bohaty, Bralower, Brass, Cande, Chamberlin, Coxall, Cramer, Crowley, Curry, Curry, de Menocal, Diester-Haass, Duplessy, Dutton, Ekart, Erbacher, Falkowski, Graham, Greenwood, Huber, Jorissen, Jorissen, Kaiho, Katz, Kennett, Kennett, Kim, Larson, Lear, Lear, Miller, Mix, Norris, Oberhansli, Pagani, Pak, Paul A. Wilson, Pearson, Philip F. Sexton, Poulsen, Rice, Richard D. Norris, Saltzman, Sarnthein, Shackleton, Shackleton, Shellito, Sloan, Spero, Stott, Suganuma, Thomas, Thomas, Thomas, Tripati, van Morkhoven, Wilson, Wilson, Wilson, Winterer, Woo, Wright, Zachos, Zachos, Zachos, Zachos   +78 more
core   +3 more sources

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

Boreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest, Neda Rahimzadeh, Debra Colarossi, Falko Malis, Tobias Lauer, Wera Sander‐Beuermann, Yvonne Spychala, Christian Brandes, Runa Fälber, Sumiko Tsukamoto, Jutta Winsemann   +10 more
wiley   +1 more source

A reappraisal of Mesozoic-Cenozoic sequence stratigraphy in Offshore Indus Basin, Pakistan

Kuwait Journal of Science
The Offshore Indus Basin is a passive continental margin and a frontier zone for hydrocarbon exploration based on structural and stratigraphic features observed on seismic data.
doaj   +1 more source