Results 41 to 50 of about 11,823 (188)

META-ULTRAMAFIC ROCK FROM THE AUSTKAMPANE AREA OF THE SØR RONDANE MOUNTAINS, EAST ANTARCTICA

, 1996
P(論文)In the Austkampane area of the S∅r Rondane Mountains, East Antarctica, a meta-ultramafic rock occurs as a lenticular block enclosed within the host garnet-biotite gneiss of the granulite facies.
イシズカ, ヒデオ, KOJIMA, Hideyasu, コジマ, ヒデヤス, スズキ, サトコ, SUZUKI, Satoko, ISHIZUKA, Hideo   +5 more
core   +1 more source

P–T Modelling Constrains the Depth of Emplacement of the Porto Azzurro Pluton and Implies Minor Exhumation Caused by the Zuccale Fault (Island of Elba, Italy)

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Understanding the pressure of emplacement of granitic intrusions is crucial to understanding the exhumation history of plutons and constraining the tectonic setting of magma emplacement. However, P–T and geochronological constraints from exhumed plutons are often characterized by large uncertainties, especially in shallow crustal settings with
Samuele Papeschi, Marco Bonini, Matteo Lupi, Chiara Del Ventisette, Domenico Montanari   +4 more
wiley   +1 more source

Impact‐diagnostic criteria for use in confirming a meteorite impact origin of terrestrial geological structures: Recommendations by the Impact Cratering Committee of the Meteoritical Society

Meteoritics &Planetary Science, EarlyView.
Abstract The framework of the Impact Cratering Committee (ICC) of the Meteoritical Society was approved in 2020, with the first committee members appointed in 2023. The ICC has a mandate to (1) approve, maintain, and update a database of confirmed terrestrial meteorite impact structures, (2) define and regularly update the criteria used for ...
A. J. Cavosie, S. Alwmark, D. Baratoux, G. Consolmagno, L. Ferrière, S. Goderis, N. Hauser, T. Kenkmann, C. Koeberl, G. R. Osinski, A. E. Pickersgill, M. Schönbächler   +11 more
wiley   +1 more source

Geochemical investigation of impactites from the Boltysh impact structure and possible relationship to early Danian sediments from the Umbria–Marche Basin, Italy

Meteoritics &Planetary Science, EarlyView.
Abstract Within the Danian Scaglia Rossa Formation appears a regionally correlatable horizon cutting across multiple sections and outcrops within the Umbria–Marche Basin of NE Italy, where it is intercalated with uniform pelagic carbonate successions. This horizon is called “ALE layer” and has tentatively been interpreted as a fine‐grained volcanic ash.
Toni Schulz, Sophia Wernitznig, Christian Koeberl, Bérengère Mougel, Alessandro Montanari, Frédéric Moynier   +5 more
wiley   +1 more source

Southern Carpathian ultramafic grasslands within the central-southeast European context: syntaxonomic classification and overall eco-coenotic patterns

Botanical Studies, 2022
Background Previous investigations carried out in ultramafic habitats emphasized the greater importance of site conditions over soil toxic metal content for vegetation composition.
Gheorghe Coldea, Dan Gafta, Gavril Negrean, Adrian Ilie Stoica, Bogdan-Iuliu Hurdu   +4 more
doaj   +1 more source

LifeMet: Report on the 2024–2025 meteorite recovery expedition in Dronning Maud Land, Antarctica for the study of microbe–meteorite interactions

Meteoritics &Planetary Science, EarlyView.
Abstract Since the discovery of nine meteorites near the Yamato mountains in 1969, Antarctica has been recognized as a superb location for meteorite recovery. While Antarctic recovery expeditions prioritize meteorite preservation for mineralogical and planetary studies, meteorites are not typically collected for biological applications.
Rachael Lappan, Rachel S. Kirby, Andrew G. Tomkins   +2 more
wiley   +1 more source

Reflectance spectra and AVIRIS-NG airborne hyperspectral data analysis for mapping ultramafic rocks in igneous terrain

Journal of Spectral Imaging, 2022
The layered Sittampundi Anorthosite Complex is covered by mafic and ultramafic rocks including anorthosite, gabbro, pyroxenite and other igneous rocks. The ultramafic terrain has frequently undergone metamorphism.
K. Tamilarasan, S. Anbazhagan, S. Uma Maheswaran, S. Ranjithkumar, K. N. Kusuma, V. J. Rajesh   +5 more
doaj   +1 more source

Stardust Mine: A 2024 gabbroic shergottite from Arizona, USA

Meteoritics &Planetary Science, EarlyView.
Abstract This study provides an initial characterization of Stardust Mine, a fresh gabbroic enriched shergottite collected in Arizona, USA, in September 2024 and is the first Martian meteorite to be unequivocably collected on US soil. Analysis was conducted on the type specimen and finds that Stardust Mine is composed of equal proportions of pyroxene ...
Jennifer T. Mitchell, Natasha R. Stephen, Zsuzsanna P. Allerton, Weiming Ding, Xin‐Yuan Zheng   +4 more
wiley   +1 more source

Arable plant communities of ultramafic and non-ultramafic soils in Beni Bousera (North Morocco)

, 2023
Traditional agroecosystems play a vital role in conserving arable plant diversity, which requires the preservation of this ecological heritage. This study aims to compare the species richness, composition, Shannon diversity, and Simpson diversity of ...
Kadiri, Mohamed, Kassout, Jalal, Mohammed Ater, Chakkour, Soufian, Soufian Chakkour, Ater, Mohammed, Kadaoui, Khalil, Khalil Kadaoui, El Ghalabzouri, Abdeljalil, Mohamed Kadiri, Sahli, Abdelouahab, Abdelouahab Sahli, Jalal Kassout, Abdeljalil El Ghalabzouri   +13 more
core   +1 more source

Vegetation diversity as a factor in carbon sequestration and storage: examples from the ultramafic forests in Palawan Island, Philippines

Journal of Degraded and Mining Lands Management
A floristic study was conducted in two ultramafic formations in Palawan Island, selected for their differing land uses, to assess the role of ultramafic forests as a carbon sink based on plant diversity and Soil Organic Carbon (SOC) content.
Ma. Ellenita Gibe De Castro, Jenielyn Padrones, Katrina Boco   +2 more
doaj   +1 more source