Do you know of a colleague and/or student who would be interested in receiving these Bulletin Boards? Please forward to them. A quick email to [email protected] with the word “subscribe” in the subject line and the email address will be added to the listing. Geoscience Bulletin Board – 16 December 2019 – compiled by Elaine J. Hanford Application of ground anchors as main seismic resisting system for bridges in catastrophic EQs • https://www.eurekalert.org/pub_releases/2019-12/uots-bp120919.php U-Th dating of calcite growth in fault-zone fractures may reveal controls for “healing” by secondary mineralization • https://eos.org/editor-highlights/what-controls-how-quickly-faults-heal 80% of seafloor remains unmapped – initiatives intended toward resolution over the next decade • https://eos.org/articles/momentum-grows-for-mapping-the-seafloor AGU revises “A Streetcar to Subduction” for the digital age • https://eos.org/agu-news/a-streetcar-for-the-digital-age • https://www.agu.org/learn-and-develop/learn/streetcar2subduction/streetcar2subduction Satellite measurements of wildfire smoke particulates in the stratosphere • https://eos.org/editor-highlights/satellite-measurements-of-stratospheric-forest-fire-smoke Planetary geology: geochemical model to explain why Mars is the Red Planet • https://eos.org/editor-highlights/why-is-the-red-planet-red-chlorate-may-oxidize-mars-surface Possible origin of black carbon on the sea floor – linked to graphite particles from hydrothermal vents • http://www.spacedaily.com/reports/Solving_the_mystery_of_carbon_on_ocean_floor_999.ht ml Scale of measurement has always mattered in observations – timing for rockfall estimates • https://eos.org/research-spotlights/timing-matters-for-rockfall-estimates White Island volcanic eruption of the coast of New Zealand causes 5 deaths & others still missing • https://www.npr.org/2019/12/09/786239329/at-least-5-dead-after-volcano-erupts-off-new- zealand-coast In this era of “global warming alarmists” do Earth scientists need a “safe place” or a “crying booth” • https://eos.org/features/the-emotional-toll-of-climate-change-on-science-professionals Planetary geology: rocks are exploding from asteroid Bennu • http://www.sci-news.com/space/bennu-active-asteroid-07893.html • https://arstechnica.com/science/2019/12/no-one-knows-why-rocks-are-exploding-from- asteroid-bennu/ Collecting data on the Ridgecrest EQ & aftershocks • https://eos.org/features/scientists-scramble-to-collect-data-after-ridgecrest-earthquakes UN Decade of Ocean Science for Sustainable Development • https://eos.org/articles/ocean-science-decade-calls-attention-to-a-wave-of-concerns In the field with paleo-seismologist Dr Kate Sharer • https://www.usgs.gov/news/field-kate-scharer Meet geologist Verity Normington • https://womensagenda.com.au/latest/never-let-someone-tell-you-what-you-can-do-meet- geologist-stem-superstar-verity-normington/ Kupoupou stilwelli, Paleocene penguin species lived when there was no ice cap at the South Pole • http://www.sci-news.com/paleontology/kupoupou-stilwelli-07890.html Origolestes lii - Previously unknown Cretaceous symmetrodont mammal lived alongside dinosaurs • http://www.sci-news.com/paleontology/origolestes-lii-07880.html 100 myo dinosaur feathers were infested with insects resembling modern lice • http://www.spacedaily.com/reports/Lice_were_infesting_dinosaur_feathers_100_million_year s_ago_999.html Athenacrinus broweri – newly discovered 480 myo sea lily • http://www.spacedaily.com/reports/Four_hundred_eighty_million_year_old_fossils_reveal_se a_lilies_ancient_roots_999.html ESA ClearSpace-1 will remove first space debris – but “smallsats” increase congestion • http://www.spacedaily.com/reports/ESA_commissions_worlds_first_space_debris_removal_9 99.html • https://crsreports.congress.gov/product/pdf/IF/IF11382 4T satellite measurements reveal short-term sea-temperature change over 35 years • http://www.terradaily.com/reports/35_year_data_record_charts_sea_temperature_change_9 99.html Time-lapse of variations in Alaskan glaciers • https://www.nasa.gov/feature/goddard/2019/ice-in-motion-satellites-capture-decades-of- change • https://www.sciencedaily.com/releases/2019/12/191210111713.htm Amplified Rossby waves in the Jet Stream increase likelihood of heat waves • https://www.sciencedaily.com/releases/2019/12/191210111713.htm Glacial meltwater provided crucial lifeline to eukaryotes during age of Snowball Earth • https://www.sciencedaily.com/releases/2019/12/191202190423.htm Tropical glaciers in Africa & South America began simultaneous retreat at end of last ice age – processes began 1,000 to 2,000 years BEFORE CO2 increase • https://phys.org/news/2019-12-tropical-glacier-ice-age.html • https://www.eurekalert.org/pub_releases/2019-12/aaft-alt120919.php • Paper: https://advances.sciencemag.org/content/5/12/eaaw2610 Sonar reveals submarine crater created by atomic bomb test on Bikini Atoll • https://phys.org/news/2019-12-sonar-crater-underwater-bikini-atoll.html Volcanic eruptions throughout history from Mount Vesuvius to White Island • https://www.lbcnews.co.uk/world-news/296d80e94cad4fd9bd49005050d1e606/ Bicycle survey of the Great Salt Lake playa • https://phys.org/news/2019-12-surveys-great-salt-lake-playa.html • https://www.sltrib.com/news/environment/2019/12/11/byu-study-blames/ • Report: https://d1bbnjcim4wtri.cloudfront.net/wp- content/uploads/2019/12/10101816/GSL_Dust_Plumes_Final_Report_Complete_Document. pdf Earth was stressed before the Chicxulub Meteor Impact – fossils show global warming, ocean acidification – no humans involved • https://www.sciencedaily.com/releases/2019/12/191211145632.htm Triggering event may not have been needed prior to the Great Oxidation Event • https://www.sciencenews.org/article/earth-might-not-have-needed-major-event-become- oxygen-rich Gold grades at Kat Gap project in Australia • https://thewest.com.au/business/public-companies/cracking-gold-grades-at-kat-gap-for- classic-c-600688 Polar ice melt will obviously have a global impact • https://public.wmo.int/en/media/news/glacier-melt-and-arctic-change-affects-globe How to teach geology with Jell-O, chocolate syrup, and Play-Doh • https://www.bowdoin.edu/news/2019/12/geology-class-middle-school-students.html “Mountain Lake” filmed in movie “Dirty Dancing” is in Virginia (not the Catskills of eastern NY) and has unique life cycle – one of only two natural lakes in the State • https://science.howstuffworks.com/environmental/earth/geology/mountain-lake-virginia- draining.htm The karst topography of Caudill, Kentucky • https://www.winchestersun.com/2019/12/06/caudill-ky-a-unique-place-for-karst-systems/ Deepest point on land is in Antarctica beneath Denman Glacier – canyon is 11,500 ft below sea level • https://www.bbc.com/news/science-environment-50753113 • https://www.dailymail.co.uk/sciencetech/article-7785343/Scientists-create-map-land- underneath-Antarcticas-ice-sheet.html New Maine Mineral & Gem Museum • https://www.bostonglobe.com/2019/12/12/lifestyle/maine-mineral-gem-museum-opens-its- pretty-out-this-world/ • https://www.centralmaine.com/2019/12/12/gemstones-lunar-meteorites-showcased-at-new- museum-in-maine/ Deforestation & erosion exacerbate mercury release into local ecosystem from gold mining in Peru • https://www.brightsurf.com/news/article/121219499143/deforestation-erosion-exacerbate- mercury-spikes-near-peruvian-gold-mining.html 1,000-mile long sub-glacial river channel beneath Greenland Ice Sheet • https://www.livescience.com/hidden-subglacial-river-greenland.html Collapse of tailings dam at Vale Mine in Brazil in January 2019 caused by “excess water” – liquefaction • https://www.insurancejournal.com/news/international/2019/12/13/551134.htm • http://www.digitaljournal.com/news/world/drainage-issues-caused-brazil-mining-dam-tragedy- say-experts/article/563477 USGS seismic hazards map shows increased risk in East Bay & San Jose, California • https://sanfrancisco.cbslocal.com/2019/12/12/usgs-hazard-seismic-map-san-jose-east-bay/ • https://www.usgs.gov/news/usgs-provides-update-national-seismic-hazard-model Faults in eastern Washington State pose risk of earthquakes • https://crosscut.com/2019/12/big-one-geologists-dig-smaller-fault-lines-predict-washingtons- future-earthquakes ********************************** Environmental Science Bulletin Board – 16 December 2019 – compiled by Elaine J. Hanford Technological hazard – social media negatively impacts human health • http://www.gazettechicago.com/index/2019/12/uic-lecture-focuses-on-social-media-and- mental-health/ • https://www.usnews.com/news/health-news/articles/2019-12-05/more-teen-time-on-social- media-more-eating-disorders • https://penntoday.upenn.edu/news/do-smartphones-and-social-media-lead-adolescent- suicide • https://www.business2community.com/social-media/detoxifying-social-networking-putting- gen-z-at-the-core-again-02264071 • https://news.camden.rutgers.edu/2019/12/expert-offers-tips-to-help-teens-deal-with-social- media-related-stress-this-holiday-season/ • https://cbsaustin.com/news/local/senate-committee-looking-into-links-between-mass- shootings-in-wednesday-hearing • https://www.msn.com/en-us/health/wellness/how-social-media-has-affected-our-health-in- the-last-10-years/ss-BBXIOMy The risks of sharing with strangers – Airbnb – Uber - Lyft • https://finance.yahoo.com/news/airbnb-uber-lyft-beware-dark-100504321.html Use of neonicotinoids caused ecological collapse of Lake Shinji in Japan • https://www.nationalgeographic.com/animals/2019/11/neonicotinoid-insecticides-cause-fish- declines-japan/