Results 41 to 50 of about 1,722,612 (173)

Key oil accumulation periods of ultra-deep fault-controlled oil reservoir in northern Tarim Basin, NW China

Petroleum Exploration and Development, 2022
A giant fault-controlled oilfield has been found in the ultra-deep (greater than 6000 m) Ordovician carbonate strata in the northern Tarim Basin. It is of great significance for hydrocarbon accumulation study and oil exploitation to determine the key oil
Shuai YANG, Guanghui WU, Yongfeng ZHU, Yintao ZHANG, Xingxing ZHAO, Ziye LU, Baoshou ZHANG   +6 more
doaj   +1 more source

The appearance of Rosenella (stromatoporoid sponge) in Baltica: new species from the Pirgu Stage (Katian, Upper Ordovician) of Estonia [PDF]

Estonian Journal of Earth Sciences
The Katian Age, part of the Late Ordovician Epoch, was a period of significant stromatoporoid diversification. However, their fossil record is often less continuous, hindering our understanding of their diversity and diversification.
Juwan Jeon, Ursula Toom
doaj   +1 more source

Warm-water Dasycladaceae algae from the Late Ordovician of the Parahio Valley, Spiti, India [PDF]

Estonian Journal of Earth Sciences, 2019
Warm-water Dasycladaceae algae Mastopora and Cyclocrinites were for the first time recorded from the Takche Formation (Upper Ordovician–lower Silurian), Parahio Valley, Spiti, India.
Ravi S. Chaubey, Olev Vinn, Birendra P. Singh, Om N. Bhargava, Subhay K. Prasad, Naval Kishore   +5 more
doaj   +1 more source

New Perspectives on Glacial Geomorphology in Earth’s Deep Time Record

Frontiers in Earth Science, 2022
The deep time (pre-Quaternary) glacial record is an important means to understand the growth, development, and recession of the global cryosphere on very long timescales (106–108 Myr).
D. P. Le Heron, M. E. Busfield, X. Chen, M. Corkeron, M. Corkeron, B. J. Davies, P. Dietrich, J-F. Ghienne, C. Kettler, L. Scharfenberg, T. M. Vandyk, R. Wohlschlägl   +11 more
doaj   +1 more source

Late Ordovician Winds, Paleogeography, and UVic ESCM Code

, 2017
These files contain the wind stress and paleogeography data generated by Herrmann et al. (2003) for a Late Ordovician climate study. The Fortran code and files were used in the UVic ESCM for a Late Ordovician setup, as the UVic ESCM contains a simple ...
D'Amico, Daniel, Michael Eby (8019308), Melchin, Michael, Alvaro Montenegro (2620984), Eby, Michael, Michael Melchin (8019305), Daniel D'Amico (8019302), Montenegro, Alvaro   +7 more
core   +1 more source

Morphological plasticity in the dentition of the lungfish Gnathorhiza from the Permian of Brazil: A population‐level geometric morphometric analysis

The Anatomical Record, EarlyView.
Abstract Dental plates are pivotal in the lungfish paleontological record, constituting highly mineralized structures resilient to diagenetic processes. This study provides a detailed description and quantitative shape analysis of 95 newly discovered Gnathorhiza sp. dental plates from the Middle–Late Permian Corumbataí Formation, Brazil.
Mauro B. S. Lacerda, Gustavo H. N. Petreca, Gabriel E. B. de Barros, Ana Emilia Quezado, Marcelo A. Fernandes   +4 more
wiley   +1 more source

Bioerosion traces in bones reveal an increase in ethological diversity in the insect exploitation of carcasses in the late Triassic

The Anatomical Record, EarlyView.
Abstract This study presents the first detailed description of bioerosion traces produced by insects in bones from the Santa Cruz Sequence (early Carnian, Santa Maria Supersequence, Brazil). An array of traces is reported, consisting of notches, a tube, trails of grooves attributed to the ichnotaxon Osteocallis mandibulus and ornamented depressions ...
Lucca S. Cunha, Francesco Battista, Heitor Francischini   +2 more
wiley   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Hydrocarbon Accumulation Mechanism of Ordovician in the Halahatang Area, Tarim Basin—Evidence From Organic Geochemistry

Frontiers in Earth Science, 2022
As an important oil and gas-bearing area in the Tarim Basin, the Halahatang Area has great potential for resource exploration. However, the research on oil and gas sources and the filling period of the Lower Paleozoic Ordovician is still limited. In this
Fei Huo, Fei Huo, Xingzhi Wang, Xingzhi Wang, Luping Li, Luping Li, Xin Luo, Xin Luo, Xiyan Yang, Xiyan Yang, Chen Shen, Chen Shen, Liang Li, Liang Li, Yunbo Ruan, Yunbo Ruan, Huiwen Huang, Huiwen Huang   +17 more
doaj   +1 more source

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

Deep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan, Fangkai Liu, Sen Zhu, Guangyou Zhu, Haiping Huang   +4 more
wiley   +1 more source