Results 71 to 80 of about 9,265 (272)

Отражение истории формирования консолидированной земной коры Приамурской золотоносной провинции в ее петрохимическом составе (по материалам отрезков сейсмических профилей Тында—Амурзет и Абакан—Тында—Татарский пролив) [PDF]

, 2017
На основі даних про швидкості поширення сейсмічних хвиль у консолідованій корі, розподіл основних петрохімічних типів порід по глибинах, співвідношення між розрахованими змістами в виділених доменах оксидів кремнію, кальцію і заліза і загальні уявлення ...
Бисеркин, И.А., Готтих, Р.П., Малинина, С.С., Писоцкий, Б.И., Черненкова, А.И.   +4 more
core   +2 more sources

A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract The northern margin of the North China Craton (NCC) hosts large numbers of hydrothermal gold deposits, with mineralization ages ranging from the Paleozoic to Mesozoic eras. The genesis of these deposits has been primarily ascribed to magmatic‐hydrothermal or crustal‐metamorphic fluid models. The Hadamengou gold deposit (>170 t Au), the largest
Tingting Xiao, Deyou Sun, Cheng Xu, Zhendong Tian, Anbo Luo, Changzhou Deng, Runsheng Yin   +6 more
wiley   +1 more source

Orbital and Millennial Variations in Wildfires Recorded in the East Siberian Arctic Shelf Over the Last Climatic Cycle

Geophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Wildfires and black carbon (BC) are critical to understanding the global carbon cycle and climate change, especially in the rapidly warming Arctic. This study reconstructs high‐intensity wildfire history over the last ∼120 kyr using soot‐BC and stable carbon isotopes from sediment core LV90‐8‐1 on the East Siberian Arctic shelf.
Yaru Liu, Zhengquan Yao, Xuefa Shi, Han Feng, Yuri Vasilenko, Alexander Bosin, Anatolii Astakhov, Yanguang Liu, Limin Hu, Weibin Zhang, YaZhi Bai, Kunshan Wang, Peng Ren, Shulan Ge   +13 more
wiley   +1 more source

The geology and geophysics of the Oslo rift [PDF]

The regional geology and geophysical characteristics of the Oslo graben are reviewed. The graben is part of a Permian age failed continental rift. Alkali olivine, tholefitic, and monzonitic intrusives as well as basaltic lavas outline the extent of the ...
Ruder, M. E.
core   +1 more source

Spatial Heterogeneity of Terrestrial Organic Carbon Burial and Degradation in the East Siberian Arctic Shelf Area

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 3, March 2025.
Abstract Climate warming has led to the translocation of a large amount of terrestrial organic carbon (TerrOC) into the Arctic Ocean. The fate of TerrOC varies dramatically in the Arctic shelves, thus introducing uncertainty into the climate‐carbon feedback.
Yifang Sun, Jiazong Du, Limin Hu, Yuying Zhang, Jun Ye, Chuanzhen Zhu, Gang Yang, Yuriy Vasilenko, Alexander Bosin, Anatolii Astakhov, Ruediger Stein, Xuefa Shi   +11 more
wiley   +1 more source

On the relation between the rare-earth — rare-metal and gold ore mineralization and fault-block tectonics of the Ukrainian Shield. 1

Геофизический журнал, 2019
The paper, which is the first of a series of articles on the relation of metallogeny and fault-block tectonics of the Ukrainian Shield (USh), summarizes data on the chemical-mineralogical composition and the exact location of deposits, ore occurrences ...
S. V. Nechaev, O.B. Gintov, S. V. Mychak
doaj   +1 more source

Multisensor Satellite Data and Field Studies for Unravelling the Structural Evolution and Gold Metallogeny of the Gerf Ophiolitic Nappe, Eastern Desert, Egypt [PDF]

, 2023
Mohamed Abd El‐Wahed, Samir Kamh, Mohamed Abu Anbar, Basem Zoheir, Mohamed M. Hamdy, Abdelaziz Abdeldayem, El Metwally Lebda, Mohamed Attia   +7 more
openalex   +1 more source

Trans‐Crustal Geophysical Responses Beneath the Supergiant Timmins‐Porcupine Orogenic Gold Camp, Canada

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 3, March 2025.
Abstract A new 80‐site magnetotelluric (MT) survey, integrated with reprocessed seismic reflection profiles, across the supergiant Timmins‐Porcupine gold camp of the Abitibi greenstone belt (AGB) was conducted to investigate the architecture of crustal‐scale structures.
A. Q. Adetunji, I. J. Ferguson, J. M. Simmons, C. Ma, S. Cheraghi, D. B. Snyder, J. A. Ayer   +6 more
wiley   +1 more source

The role of intrusion in the metallogeny of Tin-Tantalium ore deposits of Congolese Kibaran belt, case of Kalehe and masisi teritories/DRC [PDF]

, 2022
Wisdom K. Kavyavu, Barata Gloire, Kanyere Divine, Rao Govind   +3 more
openalex   +1 more source

Magnetic Characterization of Sediment Source‐To‐Sink Processes in the Bengal Fan Since 45 ka

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 2, February 2025.
Abstract The Bengal Fan is the largest submarine fan on Earth with a complex submarine channel system. Therefore, it is challenging to understand the evolution of Bengal Fan sediment source‐to‐sink processes. Here we present a synthesis of high‐resolution environmental magnetic records of five sediment cores from the central and lower Bengal Fan to ...
Rong Huang, Liao Chang, Shishun Wang, Pengfei Xue, Shengfa Liu, Xuefa Shi, Somkiat Khokiattiwong, Narumol Kornkanitnan   +7 more
wiley   +1 more source