Results 81 to 90 of about 5,124,862 (215)

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

Modeling and monitoring injectivity evolution during cold CO2 injection with field evidence from aquistore carbon capture and storage operations

Deep Underground Science and Engineering, EarlyView.
This work integrates 5 years of field data from the Aquistore CCS project with a non‐isothermal THM modeling framework to explain how cold CO2 injection alters injectivity over time. The study shows that sustained cooling near the wellbore reduces effective stresses, promotes tensile micro‑cracking, and leads to semi‑reversible permeability enhancement
Alireza Rangriz Shokri, Stephen Talman, Erik Nickel, Rick Chalaturnyk   +3 more
wiley   +1 more source

Lower Cambrian cavity-dwelling endolithic (boring) sponges

, 1981
In the Lower Cambrian Forteau Formation (middle Bonnia–Olenellus zone) of southern Labrador, cavities in archaeocyath patch reefs contain preserved coelobiontic endolithic sponges.
David R. Kobluk
core   +1 more source

An early Cambrian agglutinated tubular lophophorate with brachiopod characters [PDF]

, 2014
The morphological disparity of lophotrochozoan phyla makes it difficult to predict the morphology of the last common ancestor. Only fossils of stem groups can help discover the morphological transitions that occurred along the roots of these phyla. Here,
Shu, D.G.,, Li, Guoxiang,, Brock, Glenn A., Li, Guoxiang, Fu, D.-J., Holmer, L. E., Butler, A., Skovsted, Christian,, L. E. Holmer, Balthasar, Uwe,, Zhang, Z.-L., Wang, Haizhou, Holmer, Lars E., Cao, C. Q., Shu, D.G., Wang, H.-Z., Holmer, L.E., Holmer, Lars E.,, Butler, Aodhán D., Butler, Aodhan, G. A. Brock, Butler, Aodhan,, J. Han, G.-X. Li, Zhang, Z.-F., J.-N. Liu, H.-Z. Wang, U. Balthasar, Liu, J. N., Shu, D. G., Zhang, X.-L., Balthasar, U., Brock, G. A., Skovsted, Christian, Zhang, Z.L., Fu, D.J.,, Li, G.-X., Z.-F. Zhang, Z.-L. Zhang, Zhang, Z-L, Cao, C.-Q., Holmer, Lars, Li, G. X., Zhang, X-L, Zhang, Z-F, Wang, Haizhou,, Skovsted, C.B., Wang, H. Z., Butler, Aodhán D.,, D.-G. Shu, Skovsted, C. B., Holmer, Lars,, Zhang, Z.L.,, Zhang, Zhifei,, Brock, Glenn A.,, C. B. Skovsted, Liu, J.N.,, Liu, J.-N., Cao, C.Q.,, Han, J., D.-J. Fu, X.-L. Zhang, Cao, C.Q., Liu, J.N., A. Butler, Brock, G.A., Shu, D.-G., Fu, D.J., Zhang, X.L., C.-Q. Cao, Fu, D. J., Zhang, X.L.,, Balthasar, Uwe, Zhang, Zhifei, Han, J.,   +74 more
core   +1 more source

Discovery of high‐quality Cambrian source rocks in China's first 10 000‐m‐deep well

Deep Underground Science and Engineering, EarlyView.
Well SDTK1 penetrated the Lower Cambrian Yurtus Formation at 10 851–10 910 m in the Tarim Basin, providing the first direct drilling evidence of effective marine source rocks below 10 km. Despite overmature thermal evolution, the lower argillaceous interval retains an average total organic carbon of 4.3% and an average S1 + S2 value of 3.8 mg/g ...
Sen Zhu, Qingwen Tan, Wanyan Lan, Fangkai Liu, Guangyou Zhu   +4 more
wiley   +1 more source

Moulting in the lobopodian Onychodictyon from the lower Cambrian of Greenland [Elektronisk resurs]

, 2013
A number of lobopodian taxa from the Cambrian display pairs of sclerotized plates symmetrically positioned along the dorsum of the animal, predominantly above the walking appendages.
Harper, David A.T.,, Peel, John S.,, Topper, Timothy P.,, Skovsted, Christian,   +3 more
core   +1 more source

Orthodentine‐osteodentine and osteocytic‐anosteocytic transition inferred from Silurian stem chondrichthyan dermal jawbones with ever‐white teeth overgrown by brown denticles

Developmental Dynamics, EarlyView.
Abstract Background The dentigerous jawbones of a 423‐million‐year‐old stem chondrichthyan (ischnacanthid acanthodian) carry a characteristic combination of multi‐row non‐shedding white teeth with brownish overgrowing denticles. The color distinction makes it a good model for observing the interaction between two odontode lineages, but the nature of ...
Jia‐Cih Kang, Henning Blom, Tiiu Märss, Donglei Chen   +3 more
wiley   +1 more source

Automated segmentation of postsurgical resection cavities on magnetic resonance imaging in focal epilepsy: A Multicentre Epilepsy Lesion Detection study

Epilepsia, EarlyView.
Abstract Objective Quantitative assessment of extent of tissue resection following epilepsy surgery requires accurate delineation of the resection cavity on postoperative magnetic resonance imaging (MRI). Current methods for resection cavity masking are time‐consuming and labor‐intensive, and existing automated approaches exhibit variable segmentation ...
Jieun Seo, Mathilde Ripart, Helene Kaas, Cornelius Kronlage, Ben Sinclair, Lucy Vivash, Merran R. Courtney, Terence J. O'Brien, Siby Gopinath, Harilal Parasuram, Sedat Kandemirli, Natally Alarab, Lillian Lai, Marcus Likeman, Kai Zhang, Jiajie Mo, Georgian Ciobotaru, James Galea, Philip Sequeiros‐Peggs, Khalid Hamandi, Hua Xie, Venkata Sita Priyanka Illapani, William D. Gaillard, Nathan T. Cohen, Alexander G. Weil, Florence Henrichon‐Goulet, Kenza S. Lahlou, Aristides Hadjinicolaou, Agustín Ibáñez, Gonzalo M. Rojas‐Costa, Horst Urbach, Lara Bücheler, Marcel Heers, Adrián Valls Carbó, Rafael Toledano, Giulia Nobile, Costanza Parodi, Domenico Tortora, Alessandro Consales, Antonella Riva, Mariasavina Severino, Martin Tisdall, Felice D'Arco, Kshitij Mankad, Aswin Chari, Maria H. Eriksson, Rory J. Piper, J. Helen Cross, Torsten Baldeweg, Sofia González‐Ortiz, Jose Pariente, Nuria Bargalló, Yawu Liu, Reetta Kälviäinen, Carmen Barba, Matteo Lenge, Renzo Guerrini, Masaki Iwasaki, Daichi Sone, Hiroyuki Maki, Tomoki Imokawa, Noriko Sato, Julien Jung, Francisco Sepulveda, Daniel Mansilla, Andres Goycoolea, Ingeborg Lopez, Antonio Napolitano, Alessandro De Benedictis, Luca De Palma, Maria Camilla Rossi‐Espagnet, Nikolaos Kondylidis, Kostakis Gkiatis, Kyriakos Garganis, Joshua Pepper, Stefano Seri, John S. Duncan, Clarissa L. Yasuda, Lucas Scárdua‐Silva, Marina K. M. Alvim, Fernando Cendes, Antonio G. Gennari, Ruth O'Gorman Tuura, Georgia Ramantani, Mariam Josyula, Joel Stein, Nishant Sinha, Kate Davis, R. Edward Hogan, Luigi Maccotta, Sophie Adler, Konrad Wagstyl   +91 more
wiley   +1 more source

Geological conditions of natural gas accumulation and new exploration areas in the Mesoproterozoic to Lower Paleozoic of Ordos Basin, NW China

Petroleum Exploration and Development, 2019
Based on field outcrop investigation, interpretation and analysis of drilling and seismic data, and consulting on a large number of previous research results, the characteristics of ancient marine hydrocarbon source rocks, favorable reservoir facies ...
Jinhu DU, Xiangbo LI, Hongping BAO, Wanglin XU, Yating WANG, Junping HUANG, Hongbo WANG, Rong WANYAN, Jing WANG   +8 more
doaj   +1 more source

Trilobites and intercontinental tie points in the Upper Cambrian of Scandinavia

Geologica Acta, 2003
The Upper Cambrian faunas of Scandinavia are generally dominated by olenid trilobites, which provide a firm basis for the biostratigraphic classification. The olenids tend, however, to be provincial and facies controlled.
Per Ahlberg
doaj   +1 more source