Results 31 to 40 of about 516 (186)

S1 and S2: Lower crustal hot zones as zircon incubators? Inherited zircon antecrysts in diorites from a mafic mush reservoir

open access: yes, 2023
Reference material results (S1) and scanning electron microscope images (S2)
Lim, Hoseong   +7 more
openaire   +1 more source

Geochronology, trace elements and Hf isotopic geochemistry of zircons from Swat orthogneisses, Northern Pakistan

open access: yesOpen Geosciences, 2020
In this study, zircon grains are applied for U–Pb dating, Hf isotopes and trace elements to reveal the origin of magmatism and tectonic evolution of Late Paleozoic rocks of the Indian plate, Northern Pakistan.
Sheikh Lawangin   +3 more
doaj   +1 more source

Provenance of zircon of the lowermost sedimentary cover, Estonia, East-European Craton [PDF]

open access: yesBulletin of the Geological Society of Finland, 1999
Bulk and accessory mineral composition of fresh and weathered crystalline rocks, and sedimentary deposits overlying the crystalline-sedimentary unconformity have been examined in core samples from 28 drill holes in Estonia.
M. Konsa, V. Puura
doaj   +1 more source

Cadomian/Pan-African consolidation of the Iberian Massif assessed by its detrital and inherited zircon populations: is the ~610Ma age peak a persistent Cadomian magmatic inheritance or the key to unravel its Pan-African basement?

open access: yesGeologica Acta, 2023
This work assessed the age distribution of Cadomian/Pan-African orogenic events (550-590 and 605-790Ma, respectively) in several zones of Iberian Massif by means of detrital and inherited zircon analysis compilation.
Martim Chichorro   +4 more
doaj  

A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates

open access: yesGeophysical Monograph Series, Page 47-54., 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 ...
Alexandra Navrotsky   +2 more
wiley  

+1 more source

Neoproterozoic magmatic evolution of the southern Ouaddaï Massif (Chad)

open access: yesBSGF - Earth Sciences Bulletin, 2020
This paper presents new petrological, geochemical, isotopic (Nd) and geochronological data on magmatic rocks from the poorly known southern Ouaddaï massif, located at the southern edge of the so-called Saharan metacraton. This area is made of greenschist
Djerossem Félix   +5 more
doaj   +1 more source

Origin and implication of two newly identified peraluminous A-type granites in the early Paleozoic orogeny, Southeast Asia

open access: yesFrontiers in Earth Science, 2023
: The amalgamation of the Yangtze and the Cathaysia Block in Neoproterozoic time led to the formation of the South China Block (SCB) and generated the Jiangnan Orogen with the occurrences of juvenile magmatic rocks.
Xu-Jie Shu   +4 more
doaj   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu   +9 more
wiley   +1 more source

Is there a Grenvillian basement in the Guerrero-Morelos Platform of Mexico?

open access: yesGeologica Acta, 2007
In the Guerrero-Morelos platform (Guerrero State, Mexico) the adakitic rocks of Early Tertiary age contain abundant hornblende-rich tonalite xenoliths. Zircon crystals have been concentrated from both adakites and xenoliths, and dated using in-situ U-Pb ...
G. Levresse   +3 more
doaj   +1 more source

Zircon record of an Archaean crustal fragment and supercontinent amalgamation in quaternary back-arc volcanic rocks

open access: yesScientific Reports, 2021
Magmatism has profoundly influenced the evolution of the geosphere, hydrosphere, atmosphere, and biosphere in back-arc basins. However, the timing of the magmatism in the Okinawa Trough (OT) is not well constrained by the age spectra of zircons.
Zhi-gang Zeng   +2 more
doaj   +1 more source

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