Results 61 to 70 of about 8,683 (235)

Static recrystallization of shocked calcite in Ries impact breccias

Meteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann, Fabian Dellefant, Lina Seybold, Wolfgang W. Schmahl, Elena Sturm, Daniel Weidendorfer, Sandro Jahn, Iuliia V. Sleptsova, Stuart A. Gilder   +8 more
wiley   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 more
wiley   +1 more source

Investigations using potentiodynamic polarization measurements, cure durability, ultra violet immovability and abrasion resistance of polyamine cured ilmenite epoxy coating for oil and gas storage steel tanks in petroleum sector

Egyptian Journal of Petroleum, 2018
To uphold the corrosion protection of oil and gas steel tanks in petroleum sector, different high build epoxy coating formulations cured by polyamine hardener were modified by incorporation various concentrations of processed micro-sized ilmenite ...
A.M. Al-Sabagh, M.I. Abdou, M.A. Migahed, S. Abd-Elwanees, A.M. Fadl, A. Deiab   +5 more
doaj   +1 more source

Modified Beach Placer Ilmenite: Dilute Magnetic Oxide

, 2019
Naturally occurring Ilmenite ore is usually a mixture of Ilmenite (FeTiO3) and hematite (Fe2O3). Synthesized solid solutions of Ilmenite and hematite are known to have interesting magnetic and electric properties.
Praveen, Nikhat, Murthy, G V S, Sindhura, D   +2 more
core   +1 more source

Ore content of the Marianivka zircon-ilmenite placer

Мінеральні ресурси України
Brief information on the ore-bearing potential of the Marianivka zircon-ilmenite placer, located in the Zhytomyr district of the Zhytomyr region, is provided.
M. S. Kovalchuk, O. A. Ganzha, Yu. V. Kroshko   +2 more
doaj   +1 more source

Ільменіт [Ilmenit]

, 2011
ІЛЬМЕНІ́Т – мінерал класу оксидів і гідроксидів, виду оксидів, групи корунду-ільменіту. Інша назва – титанистий залізняк. Уперше знайдено в Ільменських горах на Уралі . Хімічна формула TiO3, типовий елементний склад : Fe – 36,8; Ti – 31,6; O – 31,6. Fe2+ ізоморфно заміщується Mg2... ⚠️ Цей запис містить лише бібліографічні метадані.
openaire   +3 more sources

Polymict melt‐bearing breccia dikes in the Morokweng impact structure formed by slip‐induced mechanical mixing of pseudotachylite and cataclasite along large‐displacement impact faults

Meteoritics &Planetary Science, EarlyView.
Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson, S'lindile S. Wela, Leonidas C. Vonopartis, Marco A. G. Andreoli   +3 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

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

Manganoan ilmenite as kimberlite/diamond indicator mineral

, 2009
Manganoan ilmenite was identified in Juina, Brazil kimberlitic rocks among other megacrysts. It forms oval, elongated, rimless grains comprising 8-30 wt.% of the heavy fraction. Internally the grains are homogeneous.
Kaminsky, Felix, Belousova, Elena
core   +1 more source