Results 61 to 70 of about 3,041 (205)

Amazonite Microcline - dng

open access: yes
RAW photogrammetry captures in .dng file format. Location of specimen collection: Florissant, Teller Co., Colorado, USA http://minecat.rc.fas.harvard.edu/objects/116507/microcline?ctx=08786542-2569-4e7f-8222-17d3abcc4ae8&idx=
Kellie, Adam
core   +1 more source

The evolution of the Čanište epidote-bearing pegmatite, Republic of Macedonia: evidence from mineralogical and geochemical features

open access: yesGeologia Croatica, 2012
The epidote-bearing Čanište pegmatite and adjacent Upper Carboniferous granodiorites cut Precambrian gneises, at the western slopes of the Selečka Mts., the Eastern Pelagonian zone, FYRO Macedonia.
Sabina Strmić Palinkaš   +6 more
doaj   +1 more source

Surface ages of alluvial fans in the southern Central Andes recorded by ground‐ and space‐based hyperspectral reflectance

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Secondary weathering of alluvial‐fan surfaces records the relative, and even absolute, ages of deposited sediments up to 300 ka. Hyperspectral imagery quantifies evolving mineral‐weathering pathways to unlock high‐resolution mapping and dating of these sedimentary landscapes.
Henry T. Crawford   +6 more
wiley   +1 more source

Ductile and Brittle Rio Grande Rift Deformation in Oligocene Granite Records a Two‐Stage Rift History in Southern Colorado

open access: yesTectonics, Volume 45, Issue 8, August 2026.
Abstract The timing and nature of early deformation in the Rio Grande Rift remains poorly constrained. We present evidence for the earliest structural signature of rift extension in the Sangre de Cristo Range, southern Colorado, based on new geologic mapping, structural analysis, rock magnetic data, and thermochronology. These analyses focus on the ∼30.
Samantha Malavarca   +7 more
wiley   +1 more source

Microcline - 3D Models - Decimated

open access: yes
Decimated 3D models in formats: .obj (with .mtl and .jpg), .x3d (with .jpg), and .glb (glTF) Location of specimen collection: Norway, Oxford County, Maine, USA.
Kellie, Adam
core   +1 more source

Replication Data for: Mapping and Modeling Sources of Natural Remanent Magnetization in the Microcline-Sillimanite Gneiss, Northwest Adirondack Mountains: Implications for Crustal Magnetism

open access: yes, 2021
The dataset includes magnetic inversion results and high-resolution magnetic scan data (before and after alternating field demagnetization to 100 mT) of a 30µm thick section of a Microcline-Sillimanite Gneiss sample from the Russel Belt in the northwest ...
Pastore, Zeudia
core   +1 more source

U-Pb ISOTOPIC GEOCHRONOLOGY OF THE MONAZITE GNEISSES OF THE «ZELENOLEVADIVSKA SUITE» OF THE MIDDLE BUG REGION

open access: yesГеологія і корисні копалини Світового океану, 2022
On the right bank of the South Bug river valley, opposite the village of Zelena Levada crystalline rocks are observed in separate scattered rock outcrops, more than 1 km long along the river bed. A bundle of hypersthene-biotite and biotite plagiogneisses
Stepanyuk L.M.
doaj   +1 more source

Exhumation History of the Sangre de Cristo Range, Colorado, From Mid‐ to Low‐Temperature Thermochronology: New Insights Into Laramide Contraction and Oligocene–Miocene Extension in the Northern Rio Grande Rift, USA

open access: yesTectonics, Volume 45, Issue 8, August 2026.
Abstract The Sangre de Cristo Range in southern Colorado records a complex tectonic history that includes Late Cretaceous–Eocene Laramide contraction and Oligocene–Quaternary Rio Grande rift extension. We present new thermochronologic data (40Ar/39Ar, fission‐track, (U‐Th)/He) and thermal history models that provide insight into this polyphase history ...
John Singleton   +10 more
wiley   +1 more source

Microcline - 3D Models - Full Resolution

open access: yes
Full Resolution 3D models in formats: .obj (with .mtl and .jpg), .x3d (with .jpg), and .glb (glTF) Location of specimen collection: Norway, Oxford County, Maine, USA.
Kellie, Adam
core   +1 more source

CHAROITE. EXPERIMENTAL STUDIES

open access: yesГеодинамика и тектонофизика, 2016
The article provides an overview of experimental studies of charoite and charoite-containing rock formation hypotheses. The authors conducted experiments to clarify charoite and host rocks interaction and study charoite transformation processes at high ...
M. V. Marchuk   +5 more
doaj   +1 more source

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