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#breccia

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Bobby D.

Continuing our look at weird works in translation on Deep Cuts in a Lovecraftian Vein this month, we review "Donde suben y bajan las mareas" (1978) by Alberto Breccia and Carlos Trillo - one of the rarer comic adaptations of Lord Dunsany's fiction.

deepcuts.blog/2025/03/19/donde

Deep Cuts in a Lovecraftian Vein · “Donde suben y bajan las mareas” (1978) by Alberto Breccia, Carlos Trillo, and Lord DunsanySasturain: Mais mesure un peu l’influence que peut avoir un regard critique sur ton oeuvre: dans les années 1960, tu as tout laissé tomber jusqu’à ce qu’apparaissent des gens qui te lisaient, te su…
#comic#Dunsany#weirdfiction
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💧🌏 Greg Cocks

Scientists Uncover Evidence Of A Colossal MegaFlood That Refilled The Mediterranean Sea
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scitechdaily.com/scientists-un <-- shared technical article
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doi.org/10.1038/s43247-024-019 <-- shared paper
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charts, photo & map - Ridge morphology
photo and 3D image/map - ridge outcrops
image - artistic interpretation of the flooding of the Mediterranean through the Strait of Gibraltar (A) and the Strait of Sicily (F) about 5.3 million years ago
seismic profiles and map - Buried erosional shelf channels upslope of Noto Canyon
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💧🌏 Greg Cocks

Atop The Oregon Cascades, [Research] Team Finds A Huge Buried Aquifer
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eurekalert.org/news-releases/1 <-- shared technical article
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doi.org/10.1073/pnas.241515512 <-- shared paper
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usgs.gov/centers/oregon-water- <-- shared USGS technical article, 2011, ‘McKenzie River Source Water Study’
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youtu.be/6R8e5HwGMwU?si=sniW4b <-- shared media video overview
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photo - Scientists examine a large-volume spring in young volcanic rocks of the McKenzie River watershed on the west side of the Cascade topographic crest that was monitored as part of this study. Credit: Benjamin Nash
map, photo and charts - (A) Electrical resistivity tomography of Olallie North Spring, which emerges along a flow contact of _25 ka Scott Mountain lava flows. Lateral variations correspond to spring discharge points along the lava flow basal breccia such as depicted in (B) (photo: Benjamin Nash). (C) Mean of total yearly range in discharge _Q divided by mean annual flow Qavg versus average upstream age for springs and streams. The horizontal line defines “spring-” versus “runoff-” dominated. (D) SD of yearly average summer discharge (June–September), normalized by Qavg, with CZ state shift labeled.
maps and chart - (A) Distribution of geothermal drill holes. Thin black circles’ radii scale with total logged length, and colors indicate the fraction of length for which dT=dz < 20_C/km (implying downward flux of meteoric water). Red circles are the fraction with inverted gradients (dT=dz < 0_C/km). The purple contour indicates bedrock ages <2 Ma, while stars mark Holocene age phreatomagmatic eruption vents. (B) Two example temperature-depth logs from deep wells in old and young bedrock. (C) Porosity (blue) and resistivity (orange) in the Santiam Pass drill hole SP 77-24. Dashed lines indicate low porosity at high measured resistivity. (D) Chemical weathering tracked by oxidation state of iron in the Santiam Pass drill hole. The green box indicates range of Quaternary High Cascades lavas (SI Appendix), indicating that much of the SP 77-24 hole has been oxidized.
maps and cross section - Oregon Cascades study site. (A) Topography, rivers (from USGS blue lines), stream gauges, lakes, and faults. Olallie North Spring (ONS) and HJ Andrews Experimental Forest (HJA) are labeled. (B) Surface bedrock ages (18), geothermal drill holes, and Quaternary volcanic vents (19). Labeled vents exhibited Holocene phreatomagmatic activity: Sand Mountain volcanic field (SMF), Blue Lake Crater (BLC), Twin Craters (TC). Gray areas are mapped as “Sedimentary deposits and rocks” in ref. 18. (C) Cross-section of swath topography and surface bedrock ages (N-S average of _4 km from Santiam Pass, pink box in panel A), with subsurface structures based on published geologic maps (SI Appendix). The proposed Critical Zone (CZ) state shift and physiographic “Western” and “High” Cascade provinces are labeled. (D) Temperature gradient versus depth in drill holes from panel (C). Near-isothermal or inverted temperature gradients define the “rain curtain.”
Public
attresa.geo

#Breccia was found in #Poland, in the #HolyCross_mountains, in the #Wysniowka #quarry. The quarry is of the #Cambrian period. Breccia is a #rock composed of larger than 1 cm in diameter angular broken fragments of #minerals or rocks #cemented together by a fine-grained matrix. The word has its origins in the Italian language, in which it means "rubble".

I am planning what to give to Vilnius University Geological Museum

#wiśniówka#kamieniołom#geology
Public
attresa.geo

The most beautiful calcite found in Poland was mined in the #Zelejów #quarry - Chęciny #marble or #Zelejówrose (since the 16th century). Its decorativeness is due to the crystalline structure of light #calcite surrounded by cherry #hematite. It has a diversified #ribbon-strip, #breccia or bow structure. Unlike classic marbles, it was not formed by metamorphic processes (advanced physical and chemical transformations of #carbonate #rocks ) but #hydrothermal #Wavellcastle was built from it.

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David Naylor

Interesting colors and contrast between #sedimentary layers and #igneous intrusions in the Gravel Hills of the #Mojave Desert.
From Tom Dibblee (1968),
openlibrary.org/books/OL256760
the layers are part of the Pickhandle and Barstow formations laid down in the Miocene. The darker purplish rock is an intrusion of #rhyolitic #breccia.
If the rock colors appear familiar you may have seen similar combinations of these formations in the Opal Mountains, Rainbow Basin, and Calico Mountains near Barstow, CA.

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