Results 11 to 20 of about 7,282 (216)

Silica is unlikely to be soluble in upper crustal carbonatite melts [PDF]

open access: yesNat Commun, 2023
A consensus among all experimental studies is that the solubility of silica (SiO 2 ) is low in upper crustal carbonatite melts of below 5 kbar and 1000 °C (mostly much less than 5 wt% SiO 2 ) 1,2 , in agreement with most natural melt inclusion studies 3 –
M. Anenburg, T. Guzmics
semanticscholar   +2 more sources

The weathering process of carbonatite: weathering time [PDF]

open access: yesPeerJ, 2023
Soil formation by rock weathering is driven by a combination of parent material, climate, organisms, topography, and time. Among these soil-forming factors, time plays a pivotal role in the weathering of carbonatite but it is a challenging factor to ...
Jin Chen   +8 more
doaj   +3 more sources

Craton-margin lithosphere drives rare earth element ore-forming carbonatite magmatism [PDF]

open access: yesNature Communications
The majority of light rare earth element (LREE) resources are derived from carbonatite-associated deposits at cratonic margins. However, the origin of ore-forming carbonatite magmas remains unclear.
Chunfei Chen   +8 more
doaj   +2 more sources

Geochemistry of Monazite within Carbonatite Related REE Deposits

open access: yesResources, 2017
Approximately >50% of global rare earth element (REE) resources are hosted by carbonatite related deposits, of which monazite is one of the most important REE minerals. Monazite dominates more than 30 carbonatite-related REE deposits around the world,
Wei Chen   +3 more
doaj   +3 more sources

Spin Transition of Iron in Deep‐Mantle Ferromagnesite

open access: yesGeophysical Monograph Series, Page 115-125., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Jiachao Liu, Suyu Fu, Jung‐Fu Lin
wiley  

+7 more sources

Ca isotope systematics of carbonatites: Insights into carbonatite source and evolution [PDF]

open access: yesGeochemical Perspectives Letters, 2021
doi: 10.7185/geochemlet.2107 Carbonatite, an unusual carbonate-rich igneous rock, is known to be sourced from themantlewhich provides insights intomantle-to-crust carbon transfer.
J. Sun   +12 more
openaire   +2 more sources

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+4 more sources

In situ U–Pb age determination of apatite from carbonatite and kimberlite in the Batain Basin, eastern Oman

open access: yesFrontiers in Earth Science, 2023
Northeastern Oman is characterized by carbonatite and kimberlite complexes, which are the ideal samples for studying the relationship between carbonatite and kimberlite. However, the ages of the Oman kimberlite and carbonatite complexes are still unknown,
Jing Sun   +3 more
doaj   +1 more source

Refertilized continental root controls the formation of the Mianning–Dechang carbonatite-associated rare-earth-element ore system

open access: yesCommunications Earth & Environment, 2023
Rare earth element ore deposits associated with carbonatite derived from Earth’s mantle supply half of the world’s rare earth element. However, the formation of carbonatite and initial enrichment and transport of rare earth element in the mantle, is ...
Z. Hou   +10 more
semanticscholar   +1 more source

Genesis of silica-rich carbonatite in the Miaoya complex, Hubei Province and its implications for REE mineralization

open access: yes地质科技通报, 2023
The Miaoya complex in Hubei Province hosts one of the most important REE deposit in China. This complex is composed of syenite, carbonatite (SiO2 < 10%), and a suite of silica-rich carbonatite (SiO2>30%).
Yinqiu Hu, Bin Wu, Qian Ren
doaj   +1 more source

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