💧🌏 Greg CocksApr 25, 2025
Unaweep Canyon - Two Creeks Flow Out Of Either End Of This [Colorado] Canyon In Opposite Directions
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https://www.atlasobscura.com/places/unaweep-canyon <-- shared technical article
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https://doi.org/10.1130/GES01112.1 <-- shared paper
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[seems like a motorcycle road trip is in order - and happy to visit this beautiful part of the world again]
#geology #colorado #paleovalley #UnaweepCanyon #unaweep #precambrian #unique #divide #water #hydrology #underfit #drainage #EastCreek #WestCreek #Dolores #Uncompahgre #UncompahgrePlateau #erosion #Gunninson #canyon #Tabeguache #mapping #geologicmapping #fieldwork #Cenozoic #gravel #sediment #rockcore #coring #lacustrine #geomorphology #geomorphometry #dating #landform #volcanics #tectonics
Unaweep Canyon

Two creeks flow out of either end of Unaweep Canyon in opposite directions.

Atlas Obscura
💧🌏 Greg CocksJan 2, 2025
Thermodynamic Model Identifies How Gold Reaches Earth's Surface
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https://phys.org/news/2024-12-thermodynamic-gold-earth-surface.html <-- shared technical article
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https://doi.org/10.1073/pnas.2404731121 <-- shared paper
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#geology #structuralgeology #mantle #crust #tectonics #platetectonics #gold #preciousmetals #subduction #mantle #crust #sulfur #RingOfFire #volcano #volcanics #magma #model #modeling #trisulfur #pressure #temperature #geochemistry #subductionzone #thermodynamics
Thermodynamic model identifies how gold reaches Earth's surface

A research team including a University of Michigan scientist has discovered a new gold-sulfur complex that helps researchers understand how gold deposits are formed.

Phys.org
💧🌏 Greg CocksApr 17, 2024
Cenozoic Exhumation Across The High Plains Of Southeastern Colorado From (U-Th)/He Thermochronology
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https://doi.org/10.2113/2023/lithosphere_2023_310 <-- shared paper
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[as a geologist and an adventure rider – and a Colorado resident that loves history - I have travelled all over this area; first photo is mine, my motorcycle under the Apishapa Arch in Aguilar, Colorado, a 1930s Civilian Conservation Corps project through a volcanic dyke, ‘coincidentally’ providing better access to land that a senator had purchased up around Cuchara and Cordova Passes]
#GIS #spatial #mapping #geology #Colorado #structuralgeology #Cenozoic #Thermochronology #model #modeling #3dmodeling #HighPlains #RockyMountains #Tertiary #intrusives #volcanics #vulcanism #SpanishPeaks #ApishapaArch #dates #dating #erosions #peneplanation #dikes #dykes
Cenozoic Exhumation Across the High Plains of Southeastern Colorado from (U-Th)/He Thermochronology | Lithosphere | GeoScienceWorld

💧🌏 Greg CocksJul 7, 2023
Earthquake Activity In Fagradalsfjall [Volcanic] Area [Iceland]
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https://en.vedur.is/about-imo/news/earthquake-activity-in-fagradalsfjall-area <-- monitoring records
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#GIS #spatial #mapping #Keilir #Fagradalsfjall #LitliHrútur #Reykjanes #iceland #volcano #volcanics #vulcanism #magma #earthquakes #eruption #earthquake #epicenter #remotesensing #satellite #cosmo #skymed #monitoring #seismic #seismology #deformation #normalisation #spatialanalysis #spatiotemporal #dike #dyke #intrusion #ground #elevation #fault #movement #gischat
The activity in the Reykjanes Peninsula has entered a new phase | News | Icelandic Meteorological office

Icelandic Meteorological office
Chris WhiteJan 15, 2023
Proterozoic Mattapan Volcanics (Zm)
These felsic rocks are exposed on the south of the Boston Basin, and lay between the Dedham Granite and the Roxbury Conglomerate. They correlate to the Lynn Volcanics in Middlesex Fells and elsewhere north of Boston. The Roxbury (PzZr) mapped on Hough’s Neck (east of “Quincy”, map) is at least partly Mattapan, as seen at Rock Island (lower photos), which was quarried for “trap rock” ~ 1910. See captions for more.
#volcanics #igneous #geology #Boston #Quincy