Results 51 to 60 of about 294,419 (331)

Sulfur partitioning between aqueous fluids and felsic melts at high pressures: Implications for sulfur migration in subduction zones

Scientific Reports
Sulfur (S), an essential volatile in subduction zone magmatism, exhibits higher solubility in aqueous fluids compared to silicate melts. Despite its importance, the partitioning of S between aqueous fluids and silicate melts under the conditions of ...
Lanqin Li, Xingcheng Liu, Ting Xu, Xiaolin Xiong, Jintuan Wang, Li Li   +5 more
doaj   +1 more source

High‐Resolution Data Sets for Global Carbonate and Silicate Rock Weathering Carbon Sinks and Their Change Trends

Earth's Future, 2022
The Carbonate rock weathering Carbon Sink (CCS) and Silicate rock weathering Carbon Sink (SCS) play a significant role in the carbon cycle and global climate change.
Lian Xiong, Xiaoyong Bai, Cuiwei Zhao, Yangbin Li, Qiu Tan, Guangjie Luo, Luhua Wu, Fei Chen, Chaojun Li, Chen Ran, Huipeng Xi, Xuling Luo, Huan Chen, Sirui Zhang, Ming Liu, Suhua Gong, Biqin Xiao, Chaochao Du, Fengjiao Song   +18 more
doaj   +1 more source

Investigation of formation mechanism of tufa deposits by chemical breakdown of legacy paper mill sludge

The Depositional Record, EarlyView.
This study reveals that legacy paper mill sludge can generate tufa deposits through calcium leaching and atmospheric CO2 interaction, acting as a carbon sink. The findings highlight its potential for low‐cost carbon sequestration and sustainable waste management.
Md Jahangir Alam, John M. MacDonald
wiley   +1 more source

Sr-Nd isotope geochemistry of the early Precambrian sub-alkaline mafic igneous rocks from the southern Bastar craton, Central India [PDF]

, 2009
Sr–Nd isotope data are reported for the early Precambrian sub-alkaline mafic igneous rocks of the southern Bastar craton, central India. These mafic rocks are mostly dykes but there are a few volcanic exposures.
BL Weaver, DA Papanastassiou, DJ DePaolo, F Kalsbeek, G Sarkar, Gulab C. Gautam, H Crookshank, HC Halls, J Blichert-Toft, JE French, JE French, JJW Rogers, JJW Rogers, M Anand, M Ramakrishnan, NM Evensen, Rajesh K. Srivastava, RCO Gill, RE Ernst, RE Ernst, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RL Rudnick, Rob M. Ellam, RP Hall, RW Maitre Le, SA Drury, SL Goldstein, SM Naqvi, SR Taylor, TE Krough, TN Irvine, V Rajamani   +39 more
core   +1 more source

Coupled authigenic Mg silicate and carbonate precipitation in saline lakes of the Salar de Atacama, Northern Chile

The Depositional Record, EarlyView.
Sediments, unlithified and lithified microbial mats in the Salar de Atacama, are formed by similar pathways involving coupled precipitation of authigenic Mg silicate and calcium carbonate. Differences in products reflect differences in the initial distribution of organic biomass.
Erica P. Suosaari, Christophe Dupraz, Amanda M. Oehlert, Ioan Lascu, Brooke E. Vitek, Alan M. Piggot, Alvaro T. Palma, R. Pamela Reid   +7 more
wiley   +1 more source

Tertiary-Quaternary subduction processes and related magmatism in the Alpine-Mediterranean region [PDF]

, 2006
During Tertiary to Quaternary times, convergence between Eurasia and Africa resulted in a variety of collisional orogens and different styles of subduction in the Alpine-Mediterranean region.
Downes, Hilary, Harangi, Szabolcs, Seghedi, I.   +2 more
core   +1 more source

Organoclay interaction response to sedimentary environment and sources in Paleogene shales from the Nanpu Sag: Insights for organic matter accumulation mechanism

The Depositional Record, EarlyView.
The deep paleo‐lake, characterised by low energy and moderate salinity, facilitated the input of fine‐grained minerals and the development of aquatic organic matter. Under the combined influence of the sedimentary environment and material source, mineral‐bound organic matter was formed, which played a crucial role in the enrichment of organic matter ...
Rusi Zuo, Jingong Cai, Wei Duan, Xiang Zeng, Jinyi He, Chuan Cai, Qianyou Wang   +6 more
wiley   +1 more source

Oxidation state of Cu in silicate melts at upper mantle conditions

Scientific Reports
Beyond its economic value, copper (Cu) serves as a valuable tracer of deep magmatic processes due to its close relationship with magmatic sulfide evolution and sensitivity to oxygen fugacity (fO2).
Xingcheng Liu, Lei Zhang, Sanyuan Zhu, Li Li, Xiaolin Xiong   +4 more
doaj   +1 more source

New Applications in Gas Geochemistry

Geofluids, 2020
Gases present in the Earth crust are important in various branches of human activities. Hydrocarbons are a significant energy resource, helium is applied in many high-tech instruments, and studies of crustal gas dynamics provide insight in the geodynamic
Francesco Italiano, Andrzej Solecki, Giovanni Martinelli, Yunpeng Wang, Guodong Zheng   +4 more
doaj   +1 more source

Microbial mediation and climatic control on dolomite precipitation in a hypersaline lake: Insights from Salinas Lake, southern Iberia

The Depositional Record, EarlyView.
The cyclical nature of aridity and humidity led to the alternating deposition of dolomite‐rich and calcite‐rich sediments. During arid phases, the lake hydrology and growth of microbial mats under evaporative and hypersaline environment favors the precipitation of dolomite.
Guolai Li, Zeina Naim, Luis Gibert, Jan‐Berend Stuut, Annemiek C. Waajen, Gonzalo Jimenez‐Moreno, Mónica Sánchez‐Román   +6 more
wiley   +1 more source