Results 71 to 80 of about 9,976 (268)

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

Prediction Model of the Sound Speed of Seafloor Sediments on the Continental Shelf of the East China Sea Based on Empirical Equations

Journal of Marine Science and Engineering, 2023
Based on the data of the acoustic and physical properties of seafloor sediments obtained on the continental shelf area of the East China Sea (ECS), prediction equations of the sediment sound speed based on single and dual parameters were established, and
Guangming Kan, Junjie Lu, Xiangmei Meng, Jingqiang Wang, Linqing Zhang, Guanbao Li, Baohua Liu, Qingfeng Hua, Mujun Chen   +8 more
doaj   +1 more source

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

The Rudnik Mts. volcano-intrusive complex (central Serbia): An example of how magmatism controls metallogeny [PDF]

, 2016
This study reports and discusses new radiometric ages, petrographical and volcanological observations and whole rock geochemical data of the rocks of the Rudnik Mts. volcano-intrusive complex. The complex hosts a Pb-Zn-Ag deposit and belongs to the Serbo-
Axel Gerdes, Kristina Šarić, Vladica Cvetković, Zoltán Pécskay   +3 more
core   +2 more sources

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

Late Cretaceous structural control and Alpine overprint of the high-sulfidation Cu-Au epithermal Chelopech deposit, Srednogorie belt, Bulgaria [PDF]

, 2018
The Chelopech epithermal high-sulfidation deposit is located in the Panagyurishte ore district in Bulgaria, which is defined by a NNW alignment of Upper Cretaceous porphyry-Cu and Cu-Au epithermal deposits, and forms part of the Eastern European Banat ...
Chambefort, Isabelle, Moritz, Robert
core  

Temporal relations between mineral deposits and global tectonic cycles [PDF]

, 2013
Natural Environment Research Council (grant NE/J021822/1) supported this research.Mineral deposits are heterogeneously distributed in both space and time, with variations reflecting tectonic setting, evolving environmental conditions, as in the ...
Cawood, Peter Anthony, Hawkesworth, Chris   +1 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

Depositional patterns constrained by slope topography changes on seamounts

Scientific Reports, 2020
Slope topography is known to control the spatial distribution of deposits on intraplate seamounts; however, relatively little is known about how slope topography changes constrain those depositional patterns.
Dewen Du, Shijuan Yan, Gang Yang, Fengdeng Shi, Zhiwei Zhu, Qinglei Song, Fengli Yang, Yingchun Cui, Xuefa Shi   +8 more
doaj   +1 more source