Results 81 to 90 of about 7,510 (223)

Does Eolian Flux to the Northwest Pacific Ocean Reflect Persistent Asian Interior Aridity on Orbital Timescales?

open access: yesGeophysical Research Letters, Volume 52, Issue 2, 28 January 2025.
Abstract Northwest Pacific sedimentary eolian dust flux records have long been used to make direct inferences about Asian interior aridity. However, factors other than aridity can impact dust production rate. We present here an integrated environmental magnetic, electron microscopic, sedimentologic, and geochemical investigation of eolian dust records ...
Qiang Zhang   +9 more
wiley   +1 more source

Ring-shape and linear gold mining districts of zimbabwe: estimation of residual gold resources

open access: yesИзвестия высших учебных заведений: Геология и разведка
Background. Despite the long history of exploitation and study of Zimbabwe’s geological potential, the ranks of gold ore formations at the level of regions and fields remain unclear. Assessment of the residual primary gold deposits in Zimbabwe appears an
P. A. Ignatov   +4 more
doaj   +1 more source

Geotectonic model of the Alpine development of Lakavica graben in the eastern part of the Vardar zone in the Republic of Macedonia [PDF]

open access: yes, 2013
Lakavica graben is located in the eastern subzone of the Vardar zone, which during the Alpine orogenesis was covered with very complex processes of tectogenesis.
Dimov, Gorgi   +2 more
core   +1 more source

Fluid inclusion and H-O-C isotope geochemistry of the Yaochong porphyry Mo deposit in Dabie Shan, China: a case study of porphyry systems in continental collision orogens [PDF]

open access: yes, 2013
The Yaochong porphyry Mo deposit in Xinxian County, Henan Province, China, is located in the Hong'an terrane, that is, the western part of the Dabie orogen.
Chen, Yan-Jing   +5 more
core   +1 more source

Metallogeny of the marginal sea lithosphere (Northeast Russia)

open access: yesЛитосфера, 2015
Metallogenic model of the margin sea lithosphere is a complex combination of rejuvenated mineralization of the Precambrian basement terrains, of different types of sulfidized zones Verkhoyansk (Pz-J) sedimentary formations and the post-magmatic ...
A. A. Sidorov, A. V. Volkov
doaj   +2 more sources

Geodynamics and Ore Content of Proterozoic Maphites in the Central Part of the Aldan-Stanovoy Shield (Southern North Asian Craton)

open access: yesГеодинамика и тектонофизика
The study of diverse mantle-derived igneous complexes is important for interpreting geodynamic events, ore deposits formation mechanisms, and ore-forming fluid sources.
A. A. Kravchenko   +4 more
doaj   +1 more source

ALPINE MAGMATIC-METALLOGENIC FORMATIONS OF THE NORTHWESTERN AND CENTRAL DINARIDES

open access: yesRudarsko-geološko-naftni Zbornik, 1997
In the paper are presented basic geological, petrologieca1, geochemi-cal and mineral deposit data for five main magmatic-metallogenic formations of the northwestern and central Dinarides: (l)The Permo Triassic rifting related andesite-diorite formations;
Jakob Pamić , Ivan Jurković
doaj  

Geochemical characteristics of charnockite and high grade gneisses from Southern Peninsular Shield and their significance in crustal evolution [PDF]

open access: yes
Presented here are the results of detailed investigations encompassing externsive structural mapping in the charnockite-high grade gneiss terrain of North Arcot district and the type area in Pallavaram in Tamil Nadu supported by petrography, mineral ...
Sugavanam, E. B., Vidyadharan, K. T.
core   +1 more source

Major elements geochemistry of chlorite in different ore deposits and its genesis and exploration significance: a case study from Naruo porphyry Cu deposit in Duolong ore district, Tibet

open access: yesFrontiers in Earth Science
Chlorite is present extensively in many types of deposits. The mechanism underlying the chemical variations in chlorite remains unclear. The Naruo porphyry deposit is a giant copper porphyry deposit in the Duolong ore district of Tibet.
Faqiao Li   +13 more
doaj   +1 more source

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