Results 241 to 250 of about 8,265,842 (328)

Identifying variation in dinosaur footprints and classifying problematic specimens via unbiased unsupervised machine learning. [PDF]

Proc Natl Acad Sci U S A
Hartmann G, Blakesley T, dePolo PE, Brusatte SL.   +3 more
europepmc   +1 more source

Sedimentary Paleoenvironment and Hydrocarbon Generation Potential Evaluation of Middle Jurassic Coal-Measure Source Rocks in the Southern Beishan Area. [PDF]

ACS Omega
Wang H, Su L, Qin Z, Gao Z, Zhao Z, Ma F, Peng X, Ma Y, Li C, Yang J, Han S.   +10 more
europepmc   +1 more source

Integrating optimization and machine learning for estimating water resistivity and saturation in shaley sand reservoirs. [PDF]

Sci Rep
Hameedy MAE, Mabrouk WM, Metwally AM.
europepmc   +1 more source

<i>Bicharracosaurus dionidei,</i> gen. et sp. nov., a new macronarian (Dinosauria, Sauropoda) from the Late Jurassic Cañadón Calcáreo Formation of Argentina and the problematic early evolution of macronarians. [PDF]

PeerJ
Reutter A, Carballido JL, Windholz GJ, Pol D, Rauhut OWM.   +4 more
europepmc   +1 more source

Palaeomagnetic and geochronologic results from lower cretaceous volcanics of the western Qiangtang terrane and implications for the Lhasa-Qiangtang collision. [PDF]

Sci Rep
Zhang Y, Bian W, Ma J, Wang S, Jiao X, Liang J, Wang S, Li X, Ding J, Zhao H, Li H, Wu H, Ma Y, Yang T.   +13 more
europepmc   +1 more source

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Provenance of Lower Jurassic sediments in the South China continental margin: Evidence from U-Pb ages of detrital zircons

, 2021
In the Early Jurassic, a large-scale transgression occurred on the South China continental margin (SCCM), affected by the initiation of Paleo-Pacific subduction.
J. Kong, Zhongjie Xu, Rihui Cheng, Liao-liang Wang   +3 more
semanticscholar   +1 more source

Constraints on the early Mesozoic denudation of the Qinling orogen from Upper Triassic-Lower Jurassic successions in the Zigui Basin, central China

Journal of Asian Earth Sciences, 2020
The Qinling mountains are situated in central China and mark the collisional assembly between the North and South China blocks. To understand the early Mesozoic evolution of the Qinling orogenic belt, we present new paleocurrent data, sandstone petrology
Rong Chai, Jianghai Yang, Yuansheng Du, Jia Liu, Feng He, Y. Huang, Q. Ma, Xianduo Dai   +7 more
semanticscholar   +1 more source

Evidence for Collagen in a Fossil of the Lower Jurassic

Nature, 1966
A WELL preserved specimen of Pholidophorus bechei Agassiz has been described from the Lower Lias of England1. The presence along its body axis of a conspicuous series of epineural intermuscular bones made it seem worth while to examine the microstructure of some endochondral bone of the head using the electron microscopic techniques recently developed ...
A R, Doberenz, R, Lund
openaire   +2 more sources

The effects of mineral composition, TOC content and pore structure on spontaneous imbibition in Lower Jurassic Dongyuemiao shale reservoirs

Marine and Petroleum Geology, 2019
Spontaneous imbibition (SI) is a capillary-force controlled process, which has been identified as one of the most important mechanisms to affect hydrocarbon recovery from unconventional shale reservoirs. In this work, we focus on the mineral composition,
Rui Yang, Q. Hu, Jizheng Yi, Baiqiao Zhang, Sheng He, Xiaowen Guo, Yuguang Hou, T. Dong   +7 more
semanticscholar   +1 more source