Jump to content

Search the Community

Showing results for tags 'volcanism'.

  • Search By Tags

    Type tags separated by commas.
    Tags should be keywords or key phrases. e.g. otodus, megalodon, shark tooth, miocene, bone valley formation, usa, florida.
  • Search By Author

Content Type


Forums

  • Community News
    • Member Introductions
    • Member of the Month
    • Members' News & Diversions
  • Fossil Discussion
    • General Fossil Discussion
    • Questions & Answers
    • Fossil Hunting Trips
    • Fossil ID
    • Partners in Paleontology - Member Contributions to Science
    • Fossil of the Month
    • Member Collections
    • A Trip to the Museum
    • Paleo Re-creations
    • Collecting Gear
    • Fossil Preparation
    • Is It Real? How to Recognize Fossil Fabrications
    • Member-to-Member Fossil Trades
    • Fossil News
  • General Category
    • Rocks & Minerals
    • Geology

Categories

  • Annelids
  • Arthropods
    • Crustaceans
    • Insects
    • Trilobites
    • Other Arthropods
  • Brachiopods
  • Cnidarians (Corals, Jellyfish, Conulariids )
    • Corals
    • Jellyfish, Conulariids, etc.
  • Echinoderms
    • Crinoids & Blastoids
    • Echinoids
    • Other Echinoderms
    • Starfish and Brittlestars
  • Forams
  • Graptolites
  • Molluscs
    • Bivalves
    • Cephalopods (Ammonites, Belemnites, Nautiloids)
    • Gastropods
    • Other Molluscs
  • Sponges
  • Bryozoans
  • Other Invertebrates
  • Ichnofossils
  • Plants
  • Chordata
    • Amphibians & Reptiles
    • Birds
    • Dinosaurs
    • Fishes
    • Mammals
    • Sharks & Rays
    • Other Chordates
  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

Blogs

  • Anson's Blog
  • Mudding Around
  • Nicholas' Blog
  • dinosaur50's Blog
  • Traviscounty's Blog
  • Seldom's Blog
  • tracer's tidbits
  • Sacredsin's Blog
  • fossilfacetheprospector's Blog
  • jax world
  • echinoman's Blog
  • Ammonoidea
  • Traviscounty's Blog
  • brsr0131's Blog
  • brsr0131's Blog
  • Adventures with a Paddle
  • Caveat emptor
  • -------
  • Fig Rocks' Blog
  • placoderms
  • mosasaurs
  • ozzyrules244's Blog
  • Terry Dactyll's Blog
  • Sir Knightia's Blog
  • MaHa's Blog
  • shakinchevy2008's Blog
  • Stratio's Blog
  • ROOKMANDON's Blog
  • Phoenixflood's Blog
  • Brett Breakin' Rocks' Blog
  • Seattleguy's Blog
  • jkfoam's Blog
  • Erwan's Blog
  • Erwan's Blog
  • marksfossils' Blog
  • ibanda89's Blog
  • Liberty's Blog
  • Liberty's Blog
  • Lindsey's Blog
  • Back of Beyond
  • Ameenah's Blog
  • St. Johns River Shark Teeth/Florida
  • gordon's Blog
  • West4me's Blog
  • West4me's Blog
  • Pennsylvania Perspectives
  • michigantim's Blog
  • michigantim's Blog
  • lauraharp's Blog
  • lauraharp's Blog
  • micropterus101's Blog
  • micropterus101's Blog
  • GPeach129's Blog
  • Olenellus' Blog
  • nicciann's Blog
  • nicciann's Blog
  • Deep-Thinker's Blog
  • Deep-Thinker's Blog
  • bear-dog's Blog
  • javidal's Blog
  • Digging America
  • John Sun's Blog
  • John Sun's Blog
  • Ravsiden's Blog
  • Jurassic park
  • The Hunt for Fossils
  • The Fury's Grand Blog
  • julie's ??
  • Hunt'n 'odonts!
  • falcondob's Blog
  • Monkeyfuss' Blog
  • cyndy's Blog
  • pattyf's Blog
  • pattyf's Blog
  • chrisf's Blog
  • chrisf's Blog
  • nola's Blog
  • mercyrcfans88's Blog
  • Emily's PRI Adventure
  • trilobite guy's Blog
  • barnes' Blog
  • xenacanthus' Blog
  • myfossiltrips.blogspot.com
  • HeritageFossils' Blog
  • Fossilefinder's Blog
  • Fossilefinder's Blog
  • maybe a nest fossil?
  • farfarawy's Blog
  • Microfossil Mania!
  • blogs_blog_99
  • Southern Comfort
  • Emily's MotE Adventure
  • Eli's Blog
  • andreas' Blog
  • Recent Collecting Trips
  • retired blog
  • andreas' Blog test
  • fossilman7's Blog
  • Piranha Blog
  • xonenine's blog
  • xonenine's Blog
  • Fossil collecting and SAFETY
  • Detrius
  • pangeaman's Blog
  • pangeaman's Blog
  • pangeaman's Blog
  • Jocky's Blog
  • Jocky's Blog
  • Kehbe's Kwips
  • RomanK's Blog
  • Prehistoric Planet Trilogy
  • mikeymig's Blog
  • Western NY Explorer's Blog
  • Regg Cato's Blog
  • VisionXray23's Blog
  • Carcharodontosaurus' Blog
  • What is the largest dragonfly fossil? What are the top contenders?
  • Test Blog
  • jsnrice's blog
  • Lise MacFadden's Poetry Blog
  • BluffCountryFossils Adventure Blog
  • meadow's Blog
  • Makeing The Unlikley Happen
  • KansasFossilHunter's Blog
  • DarrenElliot's Blog
  • Hihimanu Hale
  • jesus' Blog
  • A Mesozoic Mosaic
  • Dinosaur comic
  • Zookeeperfossils
  • Cameronballislife31's Blog
  • My Blog
  • TomKoss' Blog
  • A guide to calcanea and astragali
  • Group Blog Test
  • Paleo Rantings of a Blockhead
  • Dead Dino is Art
  • The Amber Blog
  • Stocksdale's Blog
  • PaleoWilliam's Blog
  • TyrannosaurusRex's Facts
  • The Community Post
  • The Paleo-Tourist
  • Lyndon D Agate Johnson's Blog
  • BRobinson7's Blog
  • Eastern NC Trip Reports
  • Toofuntahh's Blog
  • Pterodactyl's Blog
  • A Beginner's Foray into Fossiling
  • Micropaleontology blog
  • Pondering on Dinosaurs
  • Fossil Preparation Blog
  • On Dinosaurs and Media
  • cheney416's fossil story
  • jpc
  • A Novice Geologist
  • Red-Headed Red-Neck Rock-Hound w/ My Trusty HellHound Cerberus
  • Red Headed
  • Paleo-Profiles
  • Walt's Blog
  • Between A Rock And A Hard Place
  • Rudist digging at "Point 25", St. Bartholomä, Styria, Austria (Campanian, Gosau-group)
  • Prognathodon saturator 101
  • Books I have enjoyed
  • Ladonia Texas Fossil Park
  • Trip Reports
  • Glendive Montana dinosaur bone Hell’s Creek
  • Test
  • Stratigraphic Succession of Chesapecten

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Found 14 results

  1. From the album: Fossil Amber and Copal: Worldwide Localities

    “Simetite” Costa dell’Ambra Pachino, Syracuse Province, Sicily, Italy Lower to Middle Miocene (~20-12 Ma) Chemical Composition: C: 79.25%, H: 10.41%, O: 10.34%, S: 0.52-2.46% Specific Gravity: 1.056-1.068 Specimen A (Left): 0.6g / 20x10x8mm Specimen B (Center): 0.2g / 10x7x4mm Specimen C (Right): 0.4g / 13x8x8mm Lighting: 140lm LED Entry six of ten, detailing various rare ambers from European, Asian, and North American localities. This is an amber with a rich history. Amber from the island of Sicily is thought to have been known of since the end of the Iron Age (43 A.D.), but did not initially see much use in terms of trade or lapidary: Baltic amber was imported and preferred over Simetite, due to its larger size in general, and also possibly because it was more readily available; Simetite was later traded with the Phoenicians. Lapidary work with this amber dates back to the early 1800s, and was worked using lathes or was carved by hand: rings, necklaces, cameos, and even boxes were crafted using Simetite. Simetite was named after the River Simeto, which originates from the center of the eastern half of the island, flows south past Mt. Etna, and empties into the Mediterranean Sea along Sicily's east coast: historically, this amber was frequently found along Sicily’s eastern coastline below the mouth of the river, and today can still be found in small quantities throughout Sicily’s eastern and southern shores. Although no extensive research has been performed, the in-situ deposits are believed to be located within the center of the island; amber has been noted to become dislodged from clay-filled soil particularly along streams, where it is carried to the ocean. The rivers primarily responsible for the displacement and relocation of amber are: the Simeto and Dittaino, which converge before reaching the sea near Catania, and the Fiume Salso which travels south from the island’s center to the southern shores near Licata. Precious little research has been done in regards to determining its botanical origin, however recent work by Inez Dorothe van der Werf (2016) has suggested the Fabaceae as the source of Simetite. Low levels of cativic, labdanic, and succinic acids are present within Simetite; it also contains varying levels of sulfur (in turn, altering levels of C, H, and O), believed to be due to sulfate-rich groundwater in the deposits: amber is a permeable substance and has been proven to absorb, retain, and release gases (Hopfenberg et.al., 1988, cited by Poinar 1992): theoretically, this property also extends to resins during their burial. There is a completely black form, that is incredibly rich in sulfur, up to 2.46%: compared to Baltic amber, this variety has nearly six times the concentration of sulfur, and roughly half as much oxygen; the color of this amber is determined mainly by its sulfur content. Sources: "The System of Mineralogy of James Dwight Dana 1837-1868: Descriptive Mineralogy"; p. 1005; Dana 1892 “Life in Amber”; pp. 10, 48; George O. Poinar Jr. 1992 “L’AMBRA SICILIANA Caratterizzazione del più importante materiale gemmologico italiano del Museo di Mineralogia della Sapienza”; pp. 14-17; David Leoni 2011 “The molecular composition of Sicilian amber”; Microchemical Journal 125; van der Werf, et. al. 2016

    © Kaegen Lau

  2. From the album: Fossil Amber and Copal: Worldwide Localities

    “Simetite” Costa dell’Ambra Pachino, Syracuse Province, Sicily, Italy Lower to Middle Miocene (~20-12 Ma) Chemical Composition: C: 79.25%, H: 10.41%, O: 10.34%, S: 0.52-2.46% Specific Gravity: 1.056-1.068 Specimen A (Left): 0.6g / 20x10x8mm Specimen B (Center): 0.2g / 10x7x4mm Specimen C (Right): 0.4g / 13x8x8mm Lighting: Longwave UV Entry six of ten, detailing various rare ambers from European, Asian, and North American localities. This is an amber with a rich history. Amber from the island of Sicily is thought to have been known of since the end of the Iron Age (43 A.D.), but did not initially see much use in terms of trade or lapidary: Baltic amber was imported and preferred over Simetite, due to its larger size in general, and also possibly because it was more readily available; Simetite was later traded with the Phoenicians. Lapidary work with this amber dates back to the early 1800s, and was worked using lathes or was carved by hand: rings, necklaces, cameos, and even boxes were crafted using Simetite. Simetite was named after the River Simeto, which originates from the center of the eastern half of the island, flows south past Mt. Etna, and empties into the Mediterranean Sea along Sicily's east coast: historically, this amber was frequently found along Sicily’s eastern coastline below the mouth of the river, and today can still be found in small quantities throughout Sicily’s eastern and southern shores. Although no extensive research has been performed, the in-situ deposits are believed to be located within the center of the island; amber has been noted to become dislodged from clay-filled soil particularly along streams, where it is carried to the ocean. The rivers primarily responsible for the displacement and relocation of amber are: the Simeto and Dittaino, which converge before reaching the sea near Catania, and the Fiume Salso which travels south from the island’s center to the southern shores near Licata. Precious little research has been done in regards to determining its botanical origin, however recent work by Inez Dorothe van der Werf (2016) has suggested the Fabaceae as the source of Simetite. Low levels of cativic, labdanic, and succinic acids are present within Simetite; it also contains varying levels of sulfur (in turn, altering levels of C, H, and O), believed to be due to sulfate-rich groundwater in the deposits: amber is a permeable substance and has been proven to absorb, retain, and release gases (Hopfenberg et.al., 1988, cited by Poinar 1992): theoretically, this property also extends to resins during their burial. There is a completely black form, that is incredibly rich in sulfur, up to 2.46%: compared to Baltic amber, this variety has nearly six times the concentration of sulfur, and roughly half as much oxygen; the color of this amber is determined mainly by its sulfur content. Sources: "The System of Mineralogy of James Dwight Dana 1837-1868: Descriptive Mineralogy"; p. 1005; Dana 1892 “Life in Amber”; pp. 10, 48; George O. Poinar Jr. 1992 “L’AMBRA SICILIANA Caratterizzazione del più importante materiale gemmologico italiano del Museo di Mineralogia della Sapienza”; pp. 14-17; David Leoni 2011 “The molecular composition of Sicilian amber”; Microchemical Journal 125; van der Werf, et. al. 2016

    © Kaegen Lau

  3. From the album: Fossil Amber and Copal: Worldwide Localities

    “Simetite” Costa dell’Ambra Pachino, Syracuse Province, Sicily, Italy Lower to Middle Miocene (~20-12 Ma) Chemical Composition: C: 79.25%, H: 10.41%, O: 10.34%, S: 0.52-2.46% Specific Gravity: 1.056-1.068 Specimen A: 0.6g / 20x10x8mm Lighting: 140lm LED Entry six of ten, detailing various rare ambers from European, Asian, and North American localities. This is an amber with a rich history. Amber from the island of Sicily is thought to have been known of since the end of the Iron Age (43 A.D.), but did not initially see much use in terms of trade or lapidary: Baltic amber was imported and preferred over Simetite, due to its larger size in general, and also possibly because it was more readily available; Simetite was later traded with the Phoenicians. Lapidary work with this amber dates back to the early 1800s, and was worked using lathes or was carved by hand: rings, necklaces, cameos, and even boxes were crafted using Simetite. Simetite was named after the River Simeto, which originates from the center of the eastern half of the island, flows south past Mt. Etna, and empties into the Mediterranean Sea along Sicily's east coast: historically, this amber was frequently found along Sicily’s eastern coastline below the mouth of the river, and today can still be found in small quantities throughout Sicily’s eastern and southern shores. Although no extensive research has been performed, the in-situ deposits are believed to be located within the center of the island; amber has been noted to become dislodged from clay-filled soil particularly along streams, where it is carried to the ocean. The rivers primarily responsible for the displacement and relocation of amber are: the Simeto and Dittaino, which converge before reaching the sea near Catania, and the Fiume Salso which travels south from the island’s center to the southern shores near Licata. Precious little research has been done in regards to determining its botanical origin, however recent work by Inez Dorothe van der Werf (2016) has suggested the Fabaceae as the source of Simetite. Low levels of cativic, labdanic, and succinic acids are present within Simetite; it also contains varying levels of sulfur (in turn, altering levels of C, H, and O), believed to be due to sulfate-rich groundwater in the deposits: amber is a permeable substance and has been proven to absorb, retain, and release gases (Hopfenberg et.al., 1988, cited by Poinar 1992): theoretically, this property also extends to resins during their burial. There is a completely black form, that is incredibly rich in sulfur, up to 2.46%: compared to Baltic amber, this variety has nearly six times the concentration of sulfur, and roughly half as much oxygen; the color of this amber is determined mainly by its sulfur content. Sources: "The System of Mineralogy of James Dwight Dana 1837-1868: Descriptive Mineralogy"; p. 1005; Dana 1892 “Life in Amber”; pp. 10, 48; George O. Poinar Jr. 1992 “L’AMBRA SICILIANA Caratterizzazione del più importante materiale gemmologico italiano del Museo di Mineralogia della Sapienza”; pp. 14-17; David Leoni 2011 “The molecular composition of Sicilian amber”; Microchemical Journal 125; van der Werf, et. al. 2016

    © Kaegen Lau

  4. From the album: Fossil Amber and Copal: Worldwide Localities

    “Simetite” Costa dell’Ambra Pachino, Syracuse Province, Sicily, Italy Lower to Middle Miocene (~20-12 Ma) Chemical Composition: C: 79.25%, H: 10.41%, O: 10.34%, S: 0.52-2.46% Specific Gravity: 1.056-1.068 Specimen C: 0.4g / 13x8x8mm Lighting: 140lm LED Entry six of ten, detailing various rare ambers from European, Asian, and North American localities. This is an amber with a rich history. Amber from the island of Sicily is thought to have been known of since the end of the Iron Age (43 A.D.), but did not initially see much use in terms of trade or lapidary: Baltic amber was imported and preferred over Simetite, due to its larger size in general, and also possibly because it was more readily available; Simetite was later traded with the Phoenicians. Lapidary work with this amber dates back to the early 1800s, and was worked using lathes or was carved by hand: rings, necklaces, cameos, and even boxes were crafted using Simetite. Simetite was named after the River Simeto, which originates from the center of the eastern half of the island, flows south past Mt. Etna, and empties into the Mediterranean Sea along Sicily's east coast: historically, this amber was frequently found along Sicily’s eastern coastline below the mouth of the river, and today can still be found in small quantities throughout Sicily’s eastern and southern shores. Although no extensive research has been performed, the in-situ deposits are believed to be located within the center of the island; amber has been noted to become dislodged from clay-filled soil particularly along streams, where it is carried to the ocean. The rivers primarily responsible for the displacement and relocation of amber are: the Simeto and Dittaino, which converge before reaching the sea near Catania, and the Fiume Salso which travels south from the island’s center to the southern shores near Licata. Precious little research has been done in regards to determining its botanical origin, however recent work by Inez Dorothe van der Werf (2016) has suggested the Fabaceae as the source of Simetite. Low levels of cativic, labdanic, and succinic acids are present within Simetite; it also contains varying levels of sulfur (in turn, altering levels of C, H, and O), believed to be due to sulfate-rich groundwater in the deposits: amber is a permeable substance and has been proven to absorb, retain, and release gases (Hopfenberg et.al., 1988, cited by Poinar 1992): theoretically, this property also extends to resins during their burial. There is a completely black form, that is incredibly rich in sulfur, up to 2.46%: compared to Baltic amber, this variety has nearly six times the concentration of sulfur, and roughly half as much oxygen; the color of this amber is determined mainly by its sulfur content. Sources: "The System of Mineralogy of James Dwight Dana 1837-1868: Descriptive Mineralogy"; p. 1005; Dana 1892 “Life in Amber”; pp. 10, 48; George O. Poinar Jr. 1992 “L’AMBRA SICILIANA Caratterizzazione del più importante materiale gemmologico italiano del Museo di Mineralogia della Sapienza”; pp. 14-17; David Leoni 2011 “The molecular composition of Sicilian amber”; Microchemical Journal 125; van der Werf, et. al. 2016

    © Kaegen Lau

  5. Kaiho, K., Aftabuzzaman, M., Jones, D.S. and Tian, L., 2020. Pulsed volcanic combustion events coincident with the end-Permian terrestrial disturbance and the following global crisis. Geology. vol 49. Open access Researchgate PDF file of above paper PDF files of related papers Biswas, R.K., Kaiho, K., Saito, R., Tian, L. and Shi, Z., 2020. Terrestrial ecosystem collapse and soil erosion before the end-Permian marine extinction: Organic geochemical evidence from marine and non-marine records. Global and Planetary Change, 195, no.103327. Other papers Yours, Paul H.
  6. Texas cave sediment upends meteorite explanation for global cooling by Baylor University August 1, 2020 https://phys.org/news/2020-07-texas-cave-sediment-upends-meteorite.html The paper is: Sun, N, Brandon, A.D., Forman, S.L., Waters, M.R. and Befus, K.S., 2020. Volcanic origin for Younger Dryas geochemical anomalies ca. 12,900 cal B.P. Science Advances, 6(31), eaax8587 https://advances.sciencemag.org/content/6/31/eaax8587 Related papers: Holliday, V.T., Bartlein, P.J., Scott, A.C. and Marlon, J.R., 2020. Extraordinary biomass-burning episode and impact winter triggered by the Younger Dryas cosmic impact∼ 12,800 years ago, parts 1 and 2: a discussion. The Journal of Geology, 128(1), pp.69-94. https://www.journals.uchicago.edu/doi/abs/10.1086/706264 Wolbach, W.S., Ballard, J.P., Mayewski, P.A., Kurbatov, A., Bunch, T.E., LeCompte, M.A., Adedeji, V., Israde-Alcántara, I., Firestone, R.B., Mahaney, W.C. and Melott, A.L., 2020. Extraordinary Biomass-Burning Episode and Impact Winter Triggered by the Younger Dryas Cosmic Impact∼ 12,800 Years Ago: A Reply. The Journal of Geology, 128(1), pp.95-107. https://www.journals.uchicago.edu/doi/abs/10.1086/706265 Yours, Paul H.
  7. New insight into the Great Dying, University of Leeds, June 11, 2020 https://phys.org/news/2020-06-insight-great-dying.html The open access paper is: Jacopo Dal Corso, Benjamin J. W. Mills, Daoliang Chu, Robert J. Newton, Tamsin A. Mather, Wenchao Shu, Yuyang Wu, Jinnan Tong, and Paul B. Wignall (2020) Permo-Triassic boundary carbon and mercury cycling linked to terrestrial ecosystem collapse. Nature Communications 11, Article number: 2962 doi: https://doi.org/10.1038/s41467-020-16725-4 https://www.nature.com/articles/s41467-020-16725-4 https://www.nature.com/articles/s41467-020-16725-4.pdf Yours, Paul H.
  8. Coal-burning in Siberia led to climate change 250 million years ago, Arizona State University https://asunow.asu.edu/20200615-coal-burning-siberia-led-climate-change-250-million-years-ago Elkins-Tanton, L.T., Grasby, S.E., Black, B.A., Veselovskiy, R.V., Ardakani, O.H. and Goodarzi, F., 2020. Field evidence for coal combustion links the 252 Ma Siberian Traps with global carbon disruption. Geology, 48. (open access) https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47365.1/587319/Field-evidence-for-coal-combustion-links-the-252 Yours, Paul H.
  9. There is a series of open access papers about what caused the Late Ordovician mass extinction. They are: Bond, D.P. and Grasby, S.E., 2020. Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology. https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47377.1/586486/Late-Ordovician-mass-extinction-caused-by Mitchell, C. E., and Melchin, M.J., 2020. COMMENT: Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47946C.1/587311/COMMENT-Late-Ordovician-mass-extinction-caused-by Bond, D.P. and Grasby, S.E., 2020. REPLY: Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation. Geology. https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47984Y.1/587312/REPLY-Late-Ordovician-mass-extinction-caused-by Wang, G., Zhan, R. and Percival, I.G., 2019. The end-Ordovician mass extinction: A single-pulse event?. Earth-Science Reviews, 192, pp.15-33. https://www.sciencedirect.com/science/article/pii/S0012825218305099 https://www.researchgate.net/publication/331275476_The_end-Ordovician_mass_extinction_A_single-pulse_event https://www.researchgate.net/profile/Gx_Wang2 Yours, Paul H.
  10. Racki, G., 2020, Volcanism as a prime cause of mass extinctions: Retrospectives and perspectives, in Adatte, T., Bond, D.P.G., and Keller, G., eds., Mass Extinctions, Volcanism, and Impacts: New Developments: Geological Society of America Special Paper 544, p. 1–34 https://www.researchgate.net/publication/337951571_Volcanism_as_a_prime_cause_of_mass_extinctions_Retrospectives_and_perspectives https://www.researchgate.net/profile/Grzegorz_Racki Racki, G., Rakociński, M., Marynowski, L. and Wignall, P.B., 2018. Mercury enrichments and the Frasnian-Famennian biotic crisis: A volcanic trigger proved?. Geology, 46(6), pp.543-546. https://www.researchgate.net/publication/326031821_Mercury_enrichments_and_the_Frasnian-Famennian_biotic_crisis_A_volcanic_trigger_proved Let's be careful out there, Paul H.
  11. Yale University. "In death of dinosaurs, it was all about the asteroid -- not volcanoes." ScienceDaily. ScienceDaily, 16 January 2020. https://www.sciencedaily.com/releases/2020/01/200116141708.htm Meteorite or Volcano? New Clues to the Dinosaurs’ Demise Twin calamities marked the end of the Cretaceous period, and scientists are presenting new evidence of which drove one of Earth’s great extinctions. New York Times, January 16, 2020 https://www.nytimes.com/2020/01/16/science/dinosaurs-extinction-meteorite-volcano.html The paper is: Hull, P.M., Bornemann, A., Penman, D.E., Henehan, M.J., Norris, R.D., Wilson, P.A., Blum, P., Alegret, L., Batenburg, S.J., Bown, P.R. and Bralower, T.J., 2020. On impact and volcanism across the Cretaceous- Paleogene boundary. Science, 367(6475), pp.266-272. https://science.sciencemag.org/content/367/6475/266.abstract Yours, Paul H.
  12. Below is an interesting paper, with PDF files online, about the role of contact metamorphism of evaporites and organic rich strata by the Siberian Traps and the end-Permian extinctions. Svensen, H., Planke, S., Polozov, A.G., Schmidbauer, N., Corfu, F., Podladchikov, Y.Y. and Jamtveit, B., 2009. Siberian gas venting and the end-Permian environmental crisis. Earth and Planetary Science Letters, 277(3-4), pp.490-500. http://folk.uio.no/hensven/Svensen_EPSL_2009.pdf https://henriksvensen.wordpress.com/publicationspapers/ https://henriksvensen.wordpress.com/page/2/ Some related papers are: Burgess, S.D., Muirhead, J.D. and Bowring, S.A., 2017. Initial pulse of Siberian Traps sills as the trigger of the end-Permian mass extinction. Nature Communications, 8(1), p.164. https://www.researchgate.net/publication/318793382_Initial_pulse_of_Siberian_Traps_sills_as_the_trigger_of_the_end-Permian_mass_extinction https://www.researchgate.net/profile/Muirhead_D https://dspace.mit.edu/bitstream/handle/1721.1/113600/s41467-017-00083-9.pdf?sequence=1&isAllowed=y Polozov, A.G., Svensen, H.H., Planke, S., Grishina, S.N., Fristad, K.E. and Jerram, D.A., 2016. The basalt pipes of the Tunguska Basin (Siberia, Russia): High temperature processes and volatile degassing into the end-Permian atmosphere. Palaeogeography, Palaeoclimatology, Palaeoecology, 441, pp.51-64. Svensen, H.H., Frolov, S., Akhmanov, G.G., Polozov, A.G., Jerram, D.A., Shiganova, O.V., Melnikov, N.V., Iyer, K. and Planke, S., 2018. Sills and gas generation in the Siberian Traps. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 376(2130), p.20170080. https://www.researchgate.net/publication/327404155_Sills_and_gas_generation_in_the_Siberian_Traps https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6127383/ https://www.semanticscholar.org/paper/Sills-and-gas-generation-in-the-Siberian-Traps.-Svensen-Frolov/6d0e86fcd2beea7d96c4e15240e50650c2ac235a Rampino, M.R., Rodriguez, S., Baransky, E. and Cai, Y., 2017. Global nickel anomaly links Siberian Traps eruptions and the latest Permian mass extinction. Scientific reports, 7(1), p.12416. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5622041/ http://www.indiaenvironmentportal.org.in/files/file/Siberian trap eruptions.pdf Yours, Paul H.
  13. Below is a very interesting open access paper. Vajda, V., McLoughlin, S., Mays, C., Frank, T.D., Fielding, C.R., Tevyaw, A., Lehsten, V., Bocking, M. and Nicoll, R.S., 2020. End-Permian (252 Mya) deforestation, wildfires and flooding—An ancient biotic crisis with lessons for the present. Earth and Planetary Science Letters, 529, p.115875. https://www.sciencedirect.com/science/article/pii/S0012821X19305679 Yours, Paul H.
  14. New evidence suggests volcanoes caused biggest mass extinction ever Mercury found in ancient rock around the world supports theory that eruptions caused 'Great Dying' 252 million years ago. University of Cincinnati, Science Daily, April 15, 2019 https://www.sciencedaily.com/releases/2019/04/190415122249.htm The open access paper is: Jun Shen, Jiubin Chen, Thomas J. Algeo, Shengliu Yuan, Qinglai Feng, Jianxin Yu, Lian Zhou, Brennan O’Connell, Noah J. Planavsky. Evidence for a prolonged Permian–Triassic extinction interval from global marine mercury records. Nature Communications, 2019; 10 (1) https://www.nature.com/articles/s41467-019-09620-0 Yours, Paul H.
×
×
  • Create New...