Results 171 to 180 of about 696,092 (361)

Microtextures and structures in metal–sulfide grains in NWA 869 meteorite and their relation to thermal history of L‐chondrite parent body

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 616-631, March 2025.
Abstract Results of microanalysis study of NWA 869 meteorite, an ordinary chondrite, where silicates, Fe‐Ni alloys, and troilite are major constituents, are reported. The presented study of microtextures in metallic and sulfide grains provides information on processes occurring from the asteroid's accretion, through the impacts until cooling.
Paulina Skirak, Gabriela Opiła, Adam Piestrzyński, Gabriela Kozub‐Budzyń, Czesław Kapusta   +4 more
wiley   +1 more source

Interpretation of Carbonate-Rock Sequences; Sedimentary or Metamorphic Models?: ABSTRACT

, 1976
Brian W. Logan
openalex   +1 more source

Simulating evaporative wet and dry cycles in Gale crater, Mars using thermochemical modeling techniques

Meteoritics &Planetary Science, EarlyView.
Abstract The aim of this work is to provide a model‐backed hypothesis for the formation of evaporites—sulfates, borates—in Gale crater using thermochemical modeling to determine constraints on their formation. We test the hypothesis that primary evaporites required multiple wet–dry cycles to form, akin to how evaporite assemblages form on Earth ...
D. Das, S. M. R. Turner, S. P. Schwenzer, P. J. Gasda, J. Palandri, K. Berlo, R. J. Leveille, L. Crossey, B. M. Tutolo, S. Clegg, E. B. Hughes, N. L. Lanza, O. Gasnault   +12 more
wiley   +1 more source

Exhumed Serpentinites and Their Tectonic Significance in Non‐Collisional Orogens

Geochemistry, Geophysics, Geosystems
Exhumed serpentinites are fragments of ancient oceanic lithosphere or mantle wedge that record deep fluid‐rock interactions and metasomatic processes. While common in suture zones after closure of ocean basins, in non‐collisional orogens their origin and
Damián Donoso‐Tapia, Kennet E. Flores, Celine Martin, Esteban Gazel, Jeffrey Marsh   +4 more
doaj   +1 more source

To Desire What Is Nothing: Simone Weil, Asceticism and Psychoanalysis

Critical Quarterly, EarlyView.
Georgie Newson
wiley   +1 more source

Multimodal artificial intelligence approaches using large language models for expert‐level landslide image analysis

Computer-Aided Civil and Infrastructure Engineering, EarlyView.
Abstract Climate change exacerbates natural disasters, demanding rapid damage and risk assessment. However, expert‐reliant analyses delay responses despite drone‐aided data collection. This study develops and compares multimodal AI approaches using advanced large language models (LLMs) for expert‐level landslide image analysis.
Kittitouch Areerob, Van‐Quang Nguyen, Xianfeng Li, Shogo Inadomi, Toru Shimada, Hiroyuki Kanasaki, Zhijie Wang, Masanori Suganuma, Keiji Nagatani, Pang‐jo Chun, Takayuki Okatani   +10 more
wiley   +1 more source

Damage analysis of rocks with different properties under cyclic splitting action

Solid Earth Sciences
In underground construction operations, there are different types of rocks in repeated loading and unloading environments. For this reason, in this paper, two rock samples—slate and metamorphic sandstone, which contain different properties, were ...
ZhiYong Xu, WenQiang Ao, Yi Liu
doaj  

An overview of the Cenozoic tectonic and magmatic evolution of Sonora, northwestern Mexico

Revista Mexicana de Ciencias Geológicas, 2018
Cenozoic rocks are widely distributed in Sonora, with igneous rocks being the most abundant, followed by clastic rock. Metamorphic rocks, even though minor, have great significance in the geologic history of this area… in order to continue, download the
Francisco Javier Grijalva-Noriega, Jaime Roldán-Quintana   +1 more
doaj  

Tunnel lining segmentation from ground‐penetrating radar images using advanced single‐ and two‐stage object detection and segmentation models

Computer-Aided Civil and Infrastructure Engineering, EarlyView.
Abstract Recent advances in deep learning have enabled automated ground‐penetrating radar (GPR) image analysis, particularly through two‐stage models like mask region‐based convolutional neural (Mask R‐CNN) and single‐stage models like you only look once (YOLO), which are two mainstream approaches for object detection and segmentation tasks.
Byongkyu Bae, Yongjin Choi, Hyunjun Jung, Jaehun Ahn   +3 more
wiley   +1 more source

X-ray color maps of the zoned garnets from Silgará Formation metamorphic rocks,SantanderMassif, Eastern Cordillera (Colombia)

Earth Sciences Research Journal, 2010
<p align="left">The metamorphic rocks of the Lower Paleozoic Silgará Formation of the Santander Massif, Eastern Cordillera (Colombia), were affected by a Barrovian-type metamorphism under low to high temperature and medium pressure conditions ...
Takasu Akira, Castellanos A. Oscar Mauricio, Ríos R Carlos Alberto   +2 more
doaj