Geoscience Bulletin Board – 27 February 2023
Elaine Hanford
Retired Professional Geologist & Environmental Scientist; Consultant & Freelance Technical Editor; Consultant Family History e-Search
Assessing collapse of 433-foot-high lava dam on Rio Coca River in Ecuador
Geology is about public safety, natural resources & so much more
Paleocene-Eocene Thermal Maximum (PETM) saw global temp rise of 5-8°C based on Gulf of Mexico cores – that is true global warming that was 5 to 8 times the meager increase of the last 150 years
· https://www.sciencedaily.com/releases/2023/02/230216172224.htm
Unique rocks and precious gems of the Palouse
· https://dailyevergreen.com/152399/news/the-palouses-hidden-gems-literally/
Silicon-rich “snow” rises in the Outer Core
· https://phys.org/news/2023-02-silicon-rich-earth-outer-core.html
Ultra-low frictional healing & slow slip events along the Hikurangi tectonic plate boundary
· https://phys.org/news/2023-02-motion-scientists-tectonic-plate-boundary.html
Deep Digital Cornwall project conducting airborne electromagnetic survey of regional geology
Plate tectonics of Turkey: just a question of time before a major earthquake happened
Morrison Formation is rich in fossils
· https://a-z-animals.com/blog/what-is-the-morrison-formation-and-why-are-there-so-many-fossils-there/
Comparing 1984 & 2022 eruptions of Mauna Loa on the Big Island
Assessing climate theory, proxy data & model simulations to reflect global temperature since mid-Holocene temperature maximum when average global temperature was about 0.7 C (1.3F) warmer than modern time
· https://phys.org/news/2023-02-earth-global-reverse-long-term-cooling.html
Elephant seal remains show Ross Sea was warmer in mid- to late-Holocene
· https://phys.org/news/2023-02-elephant-antarctic-sea-warmer-mid-to-late.html
· Paper: https://www.sciencedirect.com/science/article/abs/pii/S0277379123000392?via%3Dihub
Largest alluvial diamond in NA named “Jones Diamond” weighs 34.46 carats found in West Virginia in 1928
Strong aftershocks in southern Turkey – M6.4 and M5.8
· https://www.msn.com/en-us/news/world/another-earthquake-hits-southern-turkey/ar-AA17IPW7
Mount Edgecumbe on Kruzof Island, Alaska, showing signs of activity – last eruption 4,000 years ago
First geological map of Yellowstone National Park was published in 1878
· https://www.usgs.gov/observatories/yvo/news/first-geological-map-yellowstone-national-park
Faults and aftershocks in Humboldt County, California
· https://thelumberjack.org/2023/02/20/aftershock-the-nuance-of-humboldt-geology/
Potential role of salt domes in energy “transition”
· https://news.utexas.edu/2023/02/21/salt-could-play-key-role-in-energy-transition/
Paper: Decadal cyclical geological atmospheric emissions for marine seep field offshore Coal Oil Point in Southern California
· https://www.nature.com/articles/s41598-023-28067-4
Analysis of Cretaceous carbon cycle in Cedar Mountain Formation in Utah
Book Review: The Life and Times of Dr Henry Hicks (1837-1899) - the geology of Wales
24 geological trails promote geo-tourism in Andalusia
Geologists warn against immediate construction in EQ zone in Turkey – open tenders for rebuilding
Using airborne electromagnetic induction sounding to estimate fast ice thickness in Antarctica
· https://eos.org/research-spotlights/how-thick-is-antarctic-ice-and-what-is-underneath
· Paper: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022JC019459
Japan Basin formed by seafloor spreading then bifurcated & reorganized by small-scale mantle convection
· https://eos.org/research-spotlights/small-scale-convection-shuffles-the-oceanic-lithosphere
· Paper: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022JB025581
Layer of fluid rock may ring the Earth at base of the Upper Mantle evidenced by post-seismic deformation of deep earthquake
· https://phys.org/news/2023-02-kilometer-deep-earthquake-elusive-earth-layers.html
Developing several hundred-year-old climate database from dendrochronology of building rafters in NYC
· https://eos.org/features/finding-climate-history-in-the-rafters-of-new-york-city-buildings
Visualizing which countries contribute the most plastic pollution to the ocean – surprise: Philippines contributes almost 3 times more than India, 5 times more than China & 2 times the rest of the world (including the US)
· https://www.visualcapitalist.com/cp/visualized-ocean-plastic-waste-pollution-by-country/
Humpback whales seem to be less vocal a population grows – songs may be sign of loneliness
· https://www.huffpost.com/entry/humpback-whales-wailing_n_63efa5ebe4b0255caaf1fabd
Capturing photographic images of atmospheric phenomena in National Parks – including auroras, sun dogs, moonbow, crepuscular rays, glows, Belt of Venus
How to best photograph volcanoes
· https://www.outdoorphotographer.com/tips-techniques/nature-landscapes/how-to-photograph-volcanos/
The newly discovered Innermost Core
· https://www.popularmechanics.com/science/environment/a42940662/earth-has-a-second-inner-core/
Model predicts probability of elevated arsenic in groundwater across the western Great Basin
· https://phys.org/news/2023-02-arsenic-contaminates-private-wells-western.html
Using consecutive DInSAR and law of material conservation to investigate land subsidence in Japan
· https://phys.org/news/2023-02-subsidence-japan-consecutive-dinsar-law.html
· Paper: https://www.tandfonline.com/doi/full/10.1080/10106049.2022.2159069
Patagorhynchus pascuali – Cretaceous monotreme lived in what is now Patagonia as part of Gondwana
· https://www.sci.news/paleontology/patagorhynchus-pascuali-11676.html
· Paper: https://www.nature.com/articles/s42003-023-04498-7
“le Clot” impact crater discovered near Béziers in southern France
· https://www.sci.news/space/domaine-du-meteore-crater-11681.html
· https://www.cnet.com/science/space/scientists-sleuth-out-meteorite-crater-at-a-french-winery/
· Paper: https://www.hou.usra.edu/meetings/lpsc2023/pdf/1910.pdf
As a female geologist, think quality over quantity and then pursue your passion
· https://www.susqu.edu/live/news/1561-professor-tracks-history-through-earths-rock
Update: Search for clues to missing geologist Daniel Robinson continues after a year and a half – human remains found but not Robinson
The geological diversity of Cornwall displayed in Cornish hedging
· https://www.bbc.com/news/uk-england-cornwall-64719457
Rock fall on face of El Capitan in Yosemite (video)
Deadly coal mine collapse in Inner Mongolia, China
· https://www.bbc.com/news/world-asia-china-64730607
· Video: https://www.youtube.com/watch?v=SefrstzZVQk
Are reserves of natural hydrogen waiting to be discovered for human exploitation?
Bengaluru Metro Rail seeking senior geologist and geologist to check underground tunnel work following sinkhole incident in January when portion of Brigade Road caved it
Hydrothermal vents webinar presentation (1:28:45 video)
· https://www.whoi.edu/multimedia/oe-hydrothermal-vents/