Results 81 to 90 of about 7,690 (304)
GeoCoDA: Recognizing and Validating Structural Processes in Geochemical Data. A Workflow on Compositional Data Analysis in Lithogeochemistry [PDF]
arXiv, 2023 Geochemical data are compositional in nature and are subject to the problems typically associated with data that are restricted to the real non-negative number space with constant-sum constraint, that is, the simplex. Geochemistry can be considered a proxy for mineralogy, comprised of atomically ordered structures that define the placement and ...
arxiv
Journal of Quaternary Science, EarlyView.Abstract The high mountains of Taiwan provide a unique location for Quaternary palaeoclimate research in East Asia and the north‐western Pacific. This study applies geomorphological field mapping and rock surface exposure dating with paired (10Be/26Al) in situ‐produced terrestrial cosmogenic nuclides to identify and date glacial landforms and boulders ...
Robert Hebenstreit +2 more
wiley +1 more source
River Research and Applications, EarlyView.ABSTRACT Trace elements and minerals can be important for physiological and biochemical functions in aquatic organisms and are also permanently retained in metabolically inert structures in fish, such as otoliths, which can be examined to reconstruct environmental history.
Martin J. Hamel, Wesley L. Gerrin
wiley +1 more source
Earth Sciences Research Journal, 2010 <p align="left">In the northernmost portion of the Serrania de Jarara (Alta Guajira, Colombia), low - medium grade metamorphic rocks from the Etpana Metamorphic Suite were thermally affected by emplacement of a small calc-alkaline intrusion ...
Zuluaga C. Carlos A. +1 more
doaj
Geochronology of metamorphic rocks
, 2004 Metamorphic minerals are formed at moderate to high depth in the Earth's interior. Those that have been subsequently exhumed to the Earth's surface are those that survived metastably outside their stability fields. The majority of studied metamorphic rocks did not survive unscathed, and contains diachronic mineral assemblages that record a plurality of
openaire +4 more sources
Tectonics may affect closed watersheds used to monitor climate change and human activity effects
Terra Nova, Volume 35, Issue 1, Page 58-65, February 2023., 2023 Abstract Playa lakes developed in closed watersheds have been used as environmental impact indicators (global warming, water extractions, etc.), but they could be also sensitive to active tectonics. Our study area is located in the main watershed in the western Betics, the northern branch of the Gibraltar arc, which is within the fold‐and‐thrust belt ...
Alejandro Jiménez‐Bonilla +2 more
wiley +1 more source
Broken Beds, but better science; using multiple hypotheses to interpret geological data
Terra Nova, Volume 35, Issue 1, Page 73-82, February 2023., 2023 Abstract In this study, we propose a multiple hypotheses approach to improve interpretations of limited remotely sensed datasets, such as sparsely exposed outcrops, subsurface datasets, or planetary objects using semi‐quantitative scoring and ranking of observable features.
Arnaud Gallois +3 more
wiley +1 more source
E3S Web of Conferences, 2018 Metamorphic processes, leading to mineralogical and structural changes of the rocks in response to physical (pressure, temperature) and chemical conditions, can be associated with the development of sinmetamorphic or post-metamorphic fractures.
Ciupercă Constantin-Laurian +2 more
doaj +1 more source
The metamorphic complexes of the Patagonian and Fuegian Andes
Geologica Acta, 2008 The Patagonian and Fuegian Andes are made up in part by late Paleozoic to Mesozoic metamorphic complexes. The mostly low grade late Paleozoic Eastern Andes Metamorphic Complex (EAMC) crops out to the East of the Meso-Cenozoic South Patagonian batholith ...
F. E. I. HERVÉ ALLAMAND +2 more
doaj +1 more source
Object-based Metamorphic Testing through Image Structuring [PDF]
arXiv, 2020 Testing software is often costly due to the need of mass-producing test cases and providing a test oracle for it. This is often referred to as the oracle problem. One method that has been proposed in order to alleviate the oracle problem is metamorphic testing.
arxiv