Results 61 to 70 of about 2,262 (175)

Mineralization at Different Structural Levels in the Crust

Acta Geologica Sinica - English Edition, Volume 99, Issue 4, Page 1042-1058, August 2025.
Abstract Metallogenic research on structural levels can reveal vertical patterns of mineralization and facilitate the deep exploration of economic minerals. However, research focusing on the correlation between structural levels and mineralization remains limited.
Saisai LI, Hongrui ZHANG, Zengqian HOU
wiley   +1 more source

Bipolar Seesaw of Atmospheric CO2 Between North Pacific and Southern Ocean at Millennial Timescales

Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.
Abstract The interhemispheric relation of deep‐water ventilation and surface‐ocean productivity may have played a prominent role in past atmospheric CO2 regulation. However, how these processes vary on orbital‐millennial timescales remains poorly understood.
Yi Zhong, Yanguang Liu, Jimin Yu, Chijun Sun, Qin Wen, Sev Kender, Keiji Horikawa, Xu Zhang, Michael E. Weber, Siqi Li, Hu Yang, Stefanie Kaboth‐Bahr, André Bahr, Zhaoyang Song, George E. A. Swann, Wei Cao, Sheng Yang, Yuxing Liu, Jingyu Zhang, Hai Li, Wenyue Xia, Qingsong Liu   +21 more
wiley   +1 more source

Contrasting Mechanisms Controlling Pb Isotopes of Dust in Inland and Marine Archives

Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.
Abstract Lead (Pb) isotopes are powerful tools for tracing dust provenance and reconstructing paleoclimate. However, variations in Pb isotopic compositions among different grain‐size fractions in sediments complicate their use. We examine the Nd‐Pb isotopic compositions of two sediment fractions (<2 μm and 30–63 μm) from the central Japan Sea during ...
Ruxi Dou, Jianjun Zou, Xuefa Shi, Zhi Dong, Yonghua Wu, Aimei Zhu, Xuguang Feng, Xinqing Zou, Sergey Gorbarenko, Yuriy Vasilenko, Aleksandr Bosin   +10 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

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

Ore bearing factors of breaking-block structures of the Ukrainian shield

Геофизический журнал, 2019
Most ore occurrences and mineral deposits are known to be located in tectonic fault zones. In this regard, the article analyzes the ore content of regional and local fault zones developed in the megastructures of the Ukrainian shield: Podolsky, Volynsky,
М. А. Yaroschuk, А. V. Vaylo, L. S. Оsmachko, А. Ye. Ganevich   +3 more
doaj   +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

Insights into the gold metallogeny of the Meguma terrane of Nova Scotia from LA-ICP-MS arsenopyrite geochemistry

, 2018
International audienceThe time-space distribution of ore deposits in regards to the evolution of geological terranes is known as metallogeny. In the case of the Phanerozoic Meguma terrane of southern Nova Scotia, the origin of its classic slate-belt ...
Petrus, Joe, Thurston, Phil,, Gourcerol, Blandine, Kontak, Daniel,   +3 more
core   +2 more sources

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

GOLD METALLOGENY OF THE SERBOMACEDONIANRHODOPE METALLOGENIC BELT (SRMB)

, 2017
The Alpine-Balkan-Carpathian-Dinaride (ABCD) metallogenic belt, which tectonically evolved during Late Cretaceous to the present, is Europe’s premier metallogenic province, especially for gold. Three spatially distinct tectonic and metallogenic belts are
A. Tsirambides, A. Filippidis
core   +1 more source