Results 51 to 60 of about 1,509,261 (248)

The Permian or Upper Carboniferous flora of West Virginia and S.W. Pennsylvania

, 1880
Geschenkexlibris-Etikette: "With compliments of WM.M. Fontaine, University of VA., and I.C.
Fontaine, William Morris, White, Israel C.   +1 more
openaire   +5 more sources

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

New results of microfaunal and geochemical investigations in the Permian–Triassic boundary interval from the Jadar Block (NW Serbia)

Geologica Carpathica, 2018
Detail results of microfaunal, sedimentological and geochemical investigations are documented from a newly discovered section of the Permian–Triassic boundary (PTB) interval in the area of the town of Valjevo (northwestern Serbia).
Sudar Milan N., Kolar-Jurkovšek Tea, Nestell Galina P., Jovanović Divna, Jurkovšek Bogdan, Williams Jeremy, Brookfield Michael, Stebbins Alan   +7 more
doaj   +1 more source

Accumulation characteristics of continuous sand conglomerate reservoirs of Upper Permian Upper Wuerhe Formation in Manan slope area, Junggar Basin

Shiyou shiyan dizhi, 2022
A large continuous conglomerate reservoir has been recently discovered in the Upper Permian Upper Wuerhe Formation on the southern slope of Mahu Sag, Junggar Basin.
Liliang HUANG, Ran WANG, Yang ZOU, Min WAN, Qiusheng CHANG, Yongxin QIAN   +5 more
doaj   +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

FIRST REPORT ON THE UPPERMOST PERMIAN OSTRACODS FROM THE MASORE SECTION (EXTERNAL DINARIDES), SLOVENIA

Rivista Italiana di Paleontologia e Stratigrafia
The ostracod assemblages from the Upper Permian and Permian-Triassic transitional strata of the Masore section in the External Dinarides (Slovenia) were studied.
Tea Kolar-Jurkovšek, EWA OLEMPSKA , BOGDAN JURKOVŠEK   +2 more
doaj   +1 more source

Permian Carbonates in the Venezuelan Andes [PDF]

, 2012
In northern South America, Upper Palaeozoic strata were deposited extensively over peri-cratonic areas associated with restricted seas located between Laurentia and Gondwana, in equatorial Pangea. In many places the successions are rarely exposed, and so
Laya-Pereira, Juan Carlos, LAYA-PEREIRA, JUAN,CARLOS   +1 more
core  

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

Geological carbon dioxide storage in the German North Sea: Static‐to‐dynamic capacity refinement for a 10 Mt/y injection scenario

Deep Underground Science and Engineering, EarlyView.
This study assesses whether a saline aquifer in the German North Sea can sustain industrial‐scale CO2 injection at 10 Mt/year over 30 years. A 3D reservoir model is used to compare static capacity with dynamically achievable storage. The work links site‐scale injection strategy design with basin‐scale pressure response, providing a framework for ...
Firdovsi Gasanzade, Sebastian Bauer
wiley   +1 more source

Exponentially‐constrained Gaussian mixture model for quantifying vertical development of water‐conducting fracture zones in lithologically stratified mining roofs

Deep Underground Science and Engineering, EarlyView.
This study proposes an exponentially‐constrained Gaussian mixture model (EcGMM) to quantify vertical fracture heterogeneity in stratified roof strata. The model integrates a piecewise exponential decay term capturing global stress dissipation with Gaussian components representing localized fracture intensification at lithological interfaces.
Huiqing Yuan, Zhimin Xu, Weixiao Chen, Chenghang Zhang, Shijie Xiong, Yajun Sun   +5 more
wiley   +1 more source