Results 61 to 70 of about 47,799 (141)

Comment on Nixon, A. L. et al. (2022) on Intracontinental Fault Reactivation in High Heat Production Areas of Central Australia: Insights From Apatite Fission Track Thermochronology

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract Concerning our publication Intracontinental fault reactivation in high heat production areas of central Australia: insights from apatite fission track thermochronology we have identified the presence of rmr0 values that are erroneously high, due to an error in the code used to calculate these values from grain chemistry.
A. L. Nixon, S. Glorie
wiley   +1 more source

Gemological, Geochemical, and Geochronological Study of Apatite from the Shijiangshan, Inner Mongolia

Crystals
Apatite, a ubiquitous accessory mineral, serves as a valuable recorder of magmatic processes. This study presents a systematic investigation of gem-quality apatite from the Shijiangshan Pb-Zn deposit, Inner Mongolia, integrating gemological ...
Ming-Yue Wang, Yi-Hao Liang, Yu-Tong Ma, Yu-Han Wang, Ying-Xin Liu   +4 more
doaj   +1 more source

Gold Mineralizing Potential of the Late Triassic Calcareous, Carbonaceous and Sulfide‐Rich Sedimentary Rocks of the Isatomae Formation in the South Kitakami Belt, Japan

Resource Geology, Volume 76, Issue 1, January‐December 2026.
Isatomae Formation illustrating mineralogical and geochemical characteristics. (a) Overview of the Isatomae Formation, showing the marine anoxic environment and related biogenic processes. (b) Deposition of metal‐rich Fe oxyhydroxides were transformed into sulfides through diagenesis and low grade metamorphism.
June Born Born, Yasushi Watanabe, Takuya Echigo, Yoshiaki Kon, Takumi Mimura   +4 more
wiley   +1 more source

Origin and fluxes of atmospheric REE entering an ombrotrophic peat bog in Black Forest (SW Germany): Evidence from snow, lichens and mosses [PDF]

, 2006
The fate of the Rare Earth Elements (REE) were investigated in different types of archives of atmospheric deposition in the Black Forest, Southern Germany: (1) a 70 cm snow pack collected on the domed part of a raised bog and representing 2 months of ...
Le Roux, Gaël, Aubert, D., Stille, Peter, Krachler, Michael, Shotyk, William, Kober, B., Kober, Bernd, Aubert, Dominique, Krachler, M., Stille, P., Shotyk, W., Le Roux, G., Cheburkin, A., Cheburkin, Andriy   +13 more
core   +1 more source

Petrography of phosphates in CI and CY carbonaceous chondrites

Meteoritics &Planetary Science, Volume 60, Issue 11, Page 2594-2622, November 2025.
Abstract Phosphate minerals are significant carriers of volatiles (e.g., OH) and halogens in chondritic material; however, their origin in most groups of carbonaceous chondrites remains poorly characterized. We have determined the abundance, morphology, texture, and composition of phosphate grains in aqueously altered CI chondrites and in hydrated and ...
C. S. Harrison, A. J. King, R. H. Jones, L. Piani   +3 more
wiley   +1 more source

Offshore Record of Explosive Volcanic Eruptions in the Southern Part of the Panamá Basin During the Past 10 Myr: 1. Tephrostratigraphy, Cross‐Correlations and Geochemical Characterization

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 9, September 2025.
Abstract Northern Andean volcanism is characterized by an intense Quaternary activity, whose onshore deposits have partly covered Mio‐Pliocene products associated with the early development of the arc, making it difficult to obtain an exhaustive catalog of past eruptions.
Mathilde Bablon, Marianne Saillard, François Michaud, François Nauret, Pablo Samaniego, Jean‐Luc Le Pennec, Silvana Hidalgo, Gueorgui Ratzov, Jean‐Luc Devidal, François Orange, Céline Liorzou   +10 more
wiley   +1 more source

REE fractionation during granite weathering and removal by waters and suspended loads: Sr and Nd isotopic evidence [PDF]

, 2001
Very few studies deal with REE (rare earth element) mobility within the system soil–soil solution–streamwater. In this article, we try to characterize the fractionation and the migration of the REE in a granite-derived soil system located in a small ...
Dominique Aubert, Aubert, Dominique, Anne Probst, Stille, Peter, Probst, Anne, Peter Stille   +5 more
core   +1 more source

An atlas of apatite and merrillite in martian meteorites: REE Geochemistry and a new tool for shergottite classification

Meteoritics &Planetary Science, Volume 60, Issue 8, Page 1894-1920, August 2025.
Abstract The phosphates, apatite and merrillite, are accessory phases in all martian meteorites. Although apatite is commonly used to assess volatile content and speciation in martian meteorites, merrillite is at least twice as abundant in most samples, but poorly understood. Given that shergottites are divided into enriched, intermediate, and depleted
Tahnee Burke, Andrew G. Tomkins, Zsanett Pinter, Andrew D. Langendam, Laura A. Miller   +4 more
wiley   +1 more source

GGR Handbook of Rock and Mineral Analysis Chapter 2 (Part 1) Analysis of Geological Materials – 1: Sample Preparation Methods

Geostandards and Geoanalytical Research, Volume 49, Issue 1, Page 9-50, March 2025.
Key Points Comprehensive review of dissolution‐decomposition methods based on acid attack and molten salt fusion. Dissolution remains the preferred method for many modern instrumental measurement principles e.g., ICP‐MS, ICP‐AES and TIMS. Comprehensive reviews of flux-free fusion for glasses and production of pressed powder pellets for analysis by EPMA,
Philip Robinson
wiley   +1 more source

Experimental constraints on the relative stabilities of the two systems monazite-(Ce) – allanite-(Ce) – fluorapatite and xenotime-(Y) – (Y,HREE)-rich epidote – (Y,HREE)-rich fluorapatite, in high Ca and Na-Ca environments under P-T conditions of 200–1000 MPa and 450–750 °C [PDF]

, 2016
The relative stabilities of phases within the two systems monazite-(Ce) - fluorapatite - allanite-(Ce) and xenotime-(Y) - (Y,HREE)-rich fluorapatite - (Y,HREE)-rich epidote have been tested experimentally as a function of pressure and temperature in ...
Budzyn, Bartosz, Jarosław Majka, Budzyn, Bartosz,, Gabriela A. Kozub-Budzyń, Bartosz Budzyń, Harlov, Daniel E.,, Majka, Jaroslaw,, Daniel E. Harlov, Harlov, Daniel E., Kozub-Budzyn, Gabriela A.,, Kozub-Budzyn, Gabriela A., Majka, Jaroslaw   +11 more
core   +2 more sources