Results 121 to 130 of about 51,804 (265)

Geochemical characteristics of titanite and U-Pb age of garnet from mineral mines of the Southern Urals

open access: yesЗаписки Горного института
Mineralogical-geochemical (SIMS method) study of titanite and geochronological (ID-TIMS method) study of garnets from mineral mines of the Southern Urals has been carried out. The mineral associations containing titanite belong to four contrasting types:
Vladislav S. Stativko   +4 more
doaj  

The Mobility of Major and Trace Elements in EOC Minerals on Parent Chondrite Bodies

open access: yesGeosciences
The combined EPMA and SIMS study of the geochemical features of olivine, low-Ca pyroxene and plagioclase in equilibrated ordinary chondrites (EOCs) has revealed the effect of thermal metamorphism on trace element concentrations in EOC silicate minerals ...
Kristina Sukhanova, Sergey Skublov
doaj   +1 more source

Pseudorutile-leucoxene-quartz ores of Timan ‒ a new genetic type of titanium raw materials: prospects for industrial development

open access: yesGeoresursy
The two largest deposits of Russia – Yaregskoye and Pizhemskoye belong to the same genetic type; hydrothermal-metamorphic indigenous deposits. They are located in the same Timan structure at a distance of no more than 230 km from each other. According to
A. B. Makeyev   +4 more
doaj   +1 more source

Automatic Crater Classification Using a Deep‐Learning‐Based Pipeline

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Identifying and classifying impact craters on Mars is crucial for understanding the planet's geological history and surface evolution. Traditional crater classification relies on manual annotation methods, which are often limited by human biases and the difficulty of interpreting geomorphological features.
L. Martinez   +3 more
wiley   +1 more source

Editorial

open access: yes, 2019
This issue of Quaternary Geochronology is the last one where I am the Editor-in-Chief. Quaternary Geochronology(QG) was born during a conversation when Giff Miller, John Chappell and John Magee and I were sitting around a camp fire in the Simpson Desert ...
Grun, Rainer
core   +1 more source

Provenance of Middle Triassic sediments in the Southern Youjiang Basin: Insights from detrital zircon geochronology and tourmaline geochemistry

open access: yesThe Depositional Record, Volume 12, Issue 4, September 2026.
Middle Triassic turbidites in the Youjiang Basin were chiefly derived from a Late Palaeozoic continental arc along the southeastern South China Block, as revealed by detrital zircon U–Pb geochronology and tourmaline geochemistry, supporting a tectonic model driven by Paleo‐Pacific subduction rather than Paleo‐Tethyan closure.
Yumei Wei, Lanqiu Meng, Yu Zhang
wiley   +1 more source

Inferences of Source Lithologies for Chicxulub Microtektites Using a Bayesian Approach

open access: yesGeochemistry, Geophysics, Geosystems
The Chicxulub impact on the Yucatán Peninsula at the Cretaceous‐Paleogene boundary (KPB) was a likely contributor to the end‐Cretaceous mass extinction.
Jack Carter   +5 more
doaj   +1 more source

Geochronology of Diamonds

open access: yesReviews in Mineralogy & Geochemistry, 2022
K. Smit   +6 more
semanticscholar   +1 more source

Flexural bulges and foredeep basins: Dynamic tectonic control on shifting depocentres and condensed facies, Upper Cretaceous (Santonian), Western Canada Foreland Basin

open access: yesThe Depositional Record, Volume 12, Issue 4, September 2026.
Allostratigraphically defined mudstone packages show marked along‐strike thickness variation, interpreted to be related to shifting thrust activity in the orogen; loading cycles lasted about 750 kyr. Close to the orogen, the forebulge is mantled by shelly sandstone whereas far from the orogen, the forebulge is typified by organic‐rich mudstone ...
Omar N. Al‐Mufti   +4 more
wiley   +1 more source

GRANODIORITES OF OLEKMINSKY COMPLEX OF THE EASTERN TRANSBAIKALIA: U-Pb LA-ICP-MS ZIRCONS GEOCHRONOLOGY AND AGE POSITION OF COMPLEX

open access: yesГеодинамика и тектонофизика
The palingenic calc-alkaline granitoid massifs of the Olekminsky complex form a magmatic belt stretching within the Western-Stanovoy terrane in the northeastern direction for more than 700 km.
S. I. Dril   +6 more
doaj   +1 more source

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