Results 61 to 70 of about 541,326 (254)

Cross‐Project Deep‐Sea Sediment Geochemistry From XRF Spectra: A Self‐Supervised Foundation Model (MAX)

Journal of Geophysical Research: Machine Learning and Computation
The geochemistry of deep‐sea sediments is crucial for reconstructing past climate variations in detail. A range of models has been employed to enhance the resolution of geochemical measurements derived from rapid X‐ray fluorescence (XRF) scanning data ...
An‐Sheng Lee, Yu‐Wen Pao, Hsuan‐Tien Lin, Sofia Ya Hsuan Liou   +3 more
doaj   +1 more source

Geochemistry of sediment core PS81/659-1

, 2017
Geochemistry of sediment core PS81/659-
Boetius, Antje, Molari, Massimiliano, Massimiliano Molari (6960149), Antje Boetius (6962468)   +3 more
core   +1 more source

Modeling proppant transport and settling in a 3D propagating fracture

Deep Underground Science and Engineering, EarlyView.
A versatile multiphysics tool is presented for simulating the complex processes involved in hydraulic fracturing treatments. The model couples fracture opening and propagation, variable‐density slurry flow, and proppant particle transport within the multiphysics object‐oriented simulation environment framework, based on two‐phase mixture equations and ...
Robert Egert, Aimé Fournier, Wencheng Jin   +2 more
wiley   +1 more source

Geochemistry of sediment core PS81/649-1

, 2017
Geochemistry of sediment core PS81/649-
Boetius, Antje, Molari, Massimiliano, Massimiliano Molari (6960149), Antje Boetius (6962468)   +3 more
core   +1 more source

Major engineering breakthrough of Well XA‐1, the deepest ten‐thousand‐meter well in a global sedimentary basin

Deep Underground Science and Engineering, EarlyView.
Well XA‐1, completed at a true vertical depth of 11 156 m in the Shawan Sag of the Junggar Basin, is the deepest predominantly near‐vertical well drilled in a sedimentary basin. The figure shows the basin's tectonic framework and well location (a), a structural cross‐section spanning the Shawan Sag and adjacent uplifts (b), and the stratigraphic column
Fangkai Liu, Qingwen Tan, Sen Zhu, Guangyou Zhu   +3 more
wiley   +1 more source

Subsurface Microbial Habitats in an Extreme Desert Mars-Analog Environment

Frontiers in Microbiology, 2019
Sediments in the hyper-arid core of the Atacama Desert are a terrestrial analog to Mars regolith. Understanding the distribution and drivers of microbial life in the sediment may give critical clues on how to search for biosignatures on Mars.
Kimberley A. Warren-Rhodes, Kimberley A. Warren-Rhodes, Kevin C. Lee, Stephen D. J. Archer, Nathalie Cabrol, Nathalie Cabrol, Linda Ng-Boyle, David Wettergreen, Kris Zacny, Stephen B. Pointing, Stephen B. Pointing, The NASA Life in the Atacama Project Team   +11 more
doaj   +1 more source

Geochemistry of sediment core PS81/652-1

, 2017
Geochemistry of sediment core PS81/652-
Boetius, Antje, Molari, Massimiliano, Massimiliano Molari (6960149), Antje Boetius (6962468)   +3 more
core   +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

Geochemistry of sediment core M77/1_418

, 2013
Geochemistry of sediment core M77 ...
Stefan Sommer (6967634), Bleyer, Anke, Scholz, Florian, Florian Scholz (6959999), Sommer, Stefan, Christian Hensen (6960071), Anke Bleyer (6967622), Noffke, Anna, Regina Surberg (6967631), Anna Noffke (6967628), Hensen, Christian, Domeyer, Bettina, Bettina Domeyer (6967625), Surberg, Regina   +13 more
core   +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