Results 91 to 100 of about 5,732,959 (308)

DataSheet4_Extracting the geochemical characteristics of magmas in different global tectono-magmatic settings using sparse modeling.xlsx

, 2022
In this study, key geochemical features of magmas formed in eight different tectono-magmatic settings (mid-ocean ridges, oceanic islands, oceanic plateaus, continental flood basalt provinces, intra-oceanic arcs, continental arcs, island arcs, and back ...
Kenta Ueki (12869264), Tatsu Kuwatani (3472430), Hideitsu Hino (3633196)   +2 more
core   +1 more source

Local Structures of Se and Br in Cretaceous–Paleogene Boundary Sediments and Concentration Effects of Ferrihydrite Originating From Impact Ejecta

Geological Journal, EarlyView.
Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai, Akira Yoshiasa, Ginga Kitahara, Makoto Tokuda, Satoko Ishimaru, Toshihiro Moriga   +5 more
wiley   +1 more source

Analysis of geochemical characteristics of rocks using machine learning methods [PDF]

This work is devoted to the classification of rock types based on their geochemical characteristics using machine learning methods. The study used data on the content of various elements in rocks to develop classification models.
Oksana Kukartseva, Denis Pereverzev, Vadim Tynchenko, Ksenia Degtyareva, Timofey Mariupolskiy   +4 more
core   +3 more sources

Geochemical characteristics and migration-transformation mechanisms of labile phosphorus in small estuarine sediments

Data for "Geochemical characteristics and migration-transformation mechanisms of labile phosphorus in small estuarine ...
Pan, Feng
core   +1 more source

Apatite in Carbonatite Preserving Primary Magmatic, Post‐Magmatic Overgrowth, and Post India‐Asia Collision‐Related Hydrothermal Alteration: Evidenced From U–Pb Isotope and Trace Element Geochemistry

Geological Journal, EarlyView.
U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid, Hafiz U. Rehman, Hao‐Yang Lee, Sun‐Lin Chung, Kaushik Das, Kazumasa Aoki, Muhammad Jawad Zeb, Nasir Ahmad, Muhammad Hussain, Hiroshi Yamamoto   +9 more
wiley   +1 more source

A geotechnical and geochemical characterisation of oil fire contaminated soils in Kuwait [PDF]

, 2014
As a consequence of the Saddam Hussein 1991 Iraqi led invasion of Kuwait more than 600 oil wells were set fire to as part of a scorched earth policy while retreating from the country.
Watson, Paul DJ, David Giles, Giles, David, Humoud Al-Dahanii, Paul Watson, Al-Dahanii, Humoud, Watson, Paul   +6 more
core   +1 more source

Heterogeneous Exhumation Mechanisms in Neoproterozoic Collisional Metamorphism: P–T Constraints From Pelotas and Punta del Este Terranes, Southern Brazil and Uruguay

Geological Journal, EarlyView.
Petrography, thermobarometry, and pseudosection modelling reveal peak metamorphic conditions of 3–7.5 kbar and 520°C–800°C in Tonian‐Cryogenian orthogneisses of the Dom Feliciano Belt. Metamorphic field gradients of 27°C/km–39°C/km and variable exhumation mechanisms support correlation of these units as remnants of a Himalayan‐type Piratini Orogeny ...
Thaiane Niederauer‐Santos, Carla Cristine Porcher, Daniel Triboli Vieira, Edinei Koester, Diego Jaldín, Karina Luengo, Luisa Caon   +6 more
wiley   +1 more source

Sedimentological and geochemical characteristics of a fluvial

, 2014
A sedimentological and geochemical study was performed on the travertines in the southern part of the Usak geothermal field, western Turkey, to assess the applicability of a fluvial tufa facies model in interpreting late Quaternary travertine deposits developed along the stream valleys that follow fault and fracture systems.
Ozkul, M, Gokgoz, A, Kele, S, Baykara, MO, Shen, CC, Chang, YW, Kaya, A, Hancer, M, Aratman, C, Akin, T, Orus, Z   +10 more
openaire   +2 more sources

DataSheet2_Extracting the geochemical characteristics of magmas in different global tectono-magmatic settings using sparse modeling.xlsx

, 2022
In this study, key geochemical features of magmas formed in eight different tectono-magmatic settings (mid-ocean ridges, oceanic islands, oceanic plateaus, continental flood basalt provinces, intra-oceanic arcs, continental arcs, island arcs, and back ...
Kenta Ueki (12869264), Tatsu Kuwatani (3472430), Hideitsu Hino (3633196)   +2 more
core   +1 more source

Miocene to Quaternary Tectonostratigraphic Evolution of the Northern Section of the Burdur‐Fethiye Shear Zone, South‐Western Türkiye

Geological Journal, EarlyView.
New zircon ages reveal that lacustrine sedimentation initiated in the Late Miocene (Messinian), revising earlier Pliocene age assignments. The study results support the interpretation of the northern BFSZ as a broad left‐lateral transtensional shear zone rather than a discrete sinistral fault or simple extensional graben array.
İrem Elitez, Gürsel Sunal, Cenk Yaltırak, İsak Yılmaz   +3 more
wiley   +1 more source