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https://edition.cnn.com/2024/03/05/world/anthropocene-epoch-rejected-scn/index.html
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From BBC News : How cities will fossilise - BBC Future
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My interest is in current earth conditions that would be amenable to the creation of fossils, specifically petrified wood. I want to place wood in a position where it will be likely to form petrified wood at some point in the distant future for an artistic project. I am not a scientist, although I am reasonably scientifically literate. Nevertheless, there may be blind spots in my assumptions here. I would love to hear any thoughts that forum members might have. I would imagine a group of experienced fossil hunters might have a good idea of what past conditions have been good for fossilization. It may be strange to ask but oddly topical as well - humans have been doing a lot of musing on the future fossils they are creating now. I have done a lot of research to this end, but have not found anything definitive. Maybe I'm just not looking in the right place. What I have managed to glean indicates that wood placed in sediments rich in silica may fossilize. This is very broad, but it is a start. My first thought was recent volcanic ash deposits like near Mt St Helens, but due to the cataclysm that laid the ash, there is likely to be a lot of wood in those deposits well situated to fossilize. I would prefer a situation where the petrified wood would be unusual and likely to stand out to the future intelligent being encountering the piece. There are many valleys in Nevada with non-draining basins that have seasonal lakes, and many of these are reasonably rich in silica, being derived from surrounding mountain ranges that are composed of silica-rich rock. This might be a good location, although I am still wondering about depth of placement, best soil moisture levels, and whether the alkaline conditions would be a problem. Another idea for a place would be a Volcanic Ash Flow Vernal Pool such as Boggs Lake in California. I am not sure what the pH of this soil is- fresh volcanic ash can be very acidic, but this would leach out over time, possibly creating an alkaline situation as the closed lake basin accumulates salts. Any help would be very much appreciated! I am looking for places in the western US, but really any place given as an example would be helpful. Daniel
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66 Million Years of Earth’s Climate History Uncovered – Puts Current Changes in Context University of California, Santa Cruz, Sept. 10, 2020 Science Tech Daily Live Science PhysOrg Westerhold, T., Marwan, N., Drury, A.J., Liebrand, D., Agnini, C., Anagnostou, E., Barnet, J.S., Bohaty, S.M., Vleeschouwer, D., Florindo, F. and Frederichs, T., 2020. An astronomically dated record of Earth’s climate and its predictability over the last 66 Million Years. Science Yours, Paul H.
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What Future Civilization Will Learn From Tomorrow’s Fossils
Oxytropidoceras posted a topic in Fossil News
What Future Civilization Will Learn From Tomorrow’s Fossils Rick Robinson, Northrop Grumman, April 27, 2020 https://now.northropgrumman.com/what-future-civilization-will-learn-from-tomorrows-fossils/ Fossils of the 21st century Maddie Stone, Gizmodo, December 12, 2012 https://earther.gizmodo.com/the-fossils-of-the-21st-century-1830693850 Humans Produce So Much Junk, We Are Creating a New Geological Layer The technofossils we leave behind will create a mark on the planet. By Starre Vartan, Slate, March 27, 2017 https://slate.com/technology/2017/03/humans-are-creating-a-new-geological-layer-of-technofossils.html Dibley, B., 2018. The technofossil: a memento mori. Journal of Contemporary Archaeology, 5(1), pp.44-52. https://www.researchgate.net/publication/325573088_The_Technofossil_A_Memento_Mori https://www.researchgate.net/profile/Ben_Dibley Zalasiewicz, J., Williams, M., Waters, C.N., Barnosky, A.D. and Haff, P., 2014. The technofossil record of humans. The Anthropocene Review, 1(1), pp.34-43. http://nora.nerc.ac.uk/id/eprint/506920/1/Zalasiewicz et al. 2014.pdf https://journals.sagepub.com/doi/abs/10.1177/2053019613514953 Yours, Paul H.-
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What fossils will modern-day civilization leave behind?
Oxytropidoceras posted a topic in Fossil News
What fossils will modern-day civilization leave behind? By Eva Frederick, Science News, Jan. 6, 2020 https://www.sciencemag.org/news/2020/01/what-fossils-will-modern-day-civilization-leave-behind The open access paper is: Plotnick, R.E. and Koy, K.A., 2019. The Anthropocene Fossil Record of Terrestrial Mammals. Anthropocene, p.100233. The Anthropocene fossil record of terrestrial mammals https://www.sciencedirect.com/science/article/pii/S221330541930044X?via%3Dihub Yours, Paul H.-
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Cave floor slab? (New terms to me... clastic vs chemical sedimentary rock)
SteveE posted a topic in Geology
Blair County, Pennsyvlania USA From roadside rubble outside an area quarry in the Keyser/Tonoloway, which is known to have karst features OK, so this isn't a fossil, but it caught my eye while fossil hunting, and I learned something so thought I'd share. One side of this limestone slab has a ton of pebbles glued to it with some sort of mineral layer, with the rough look of partially dried up butterscotch pudding (that's a technical term, right?). I don't see any fossils in this slab. The limestone fizzes, the glue layer does not. Just guessing, it looks like maybe there was at least a crack if not a larger passageway, debris from the "ceiling" accumulated, and later the mineral glue was deposited to glue them in place. Part of me wonders if this might be from the anthropocene, with quarry blasting shaking bits from above and then the mineral glue came along.... or maybe all these pieces were placed loose in a heap, and then the mineral glue came along.... Anyway, is there a technical term for this rock type? While prepping this post, I started wondering if stalagmites are sedimentary rocks, and then found this pretty basic info which explains that sedimentary rocks are divided between clastic sedimentary and chemical sedimentary. I kinda knew that intuitively but never really thought about it or knew the terms. Beyond me sharing my Aha! moment on something so basic, does anyone have a more precise technical term for this slab? Any opinion if if this shows all natural processes (before I came along that is!)- 6 replies
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Ancient moss awakens amid thawing ice caps and permafrost
Oxytropidoceras posted a topic in Fossil News
Ancient life awakens amid thawing ice caps and permafrost By Daniel Ackerman, The Washington Post, July 7, 2019, https://www.washingtonpost.com/science/ancient-life-awakens-amid-thawing-ice-caps-and-permafrost/2019/07/05/335281f8-7108-11e9-9f06-5fc2ee80027a_story.html Aulacomnium turgidum - Swollen Thread-moss PDF file - https://rbg-web2.rbge.org.uk/bbs/Activities/mosses/Aulacomnium turgidum.pdf Wikipedia - https://en.wikipedia.org/wiki/Aulacomnium_turgidum The papers are: Roads, E., Longton, R.E. and Convey, P., 2014. Millennial timescale regeneration in a moss from Antarctica. Current Biology, 24(6), pp.R222-R223. https://www.sciencedirect.com/science/article/pii/S0960982214000864 La Farge, C., Williams, K.H. and England, J.H., 2013. Regeneration of Little Ice Age bryophytes emerging from a polar glacier with implications of totipotency in extreme environments. Proceedings of the National Academy of Sciences, 110(24), pp.9839-9844.s https://www.pnas.org/content/110/24/9839 Yours, Paul H.- 1 reply
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Fossil planktonic foraminifera indicate that marine ecosystems have entered the Anthropocene
Oxytropidoceras posted a topic in Fossil News
Fossil zooplankton indicate that marine ecosystems have entered the Anthropocene. Center for Marine Environmental Sciences, University of Bremen https://www.sciencedaily.com/releases/2019/05/190528120605.htm https://www.eurekalert.org/pub_releases/2019-05/m-cf-fzi052319.php https://natureecoevocommunity.nature.com/users/260397-lukas-jonkers/posts/49174-fossil-zooplankton-shows-that-marine-ecosystems-have-entered-the-anthropocene The paper is: Lukas Jonkers, Helmut Hillebrand, Michal Kucera. 2019. Global change drives modern plankton communities away from the pre-industrial state. Nature, 2019; DOI: 10.1038/s41586-019-1230-3 http://dx.doi.org/10.1038/s41586-019-1230-3 Yours, Paul H.-
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Chicken Evolution and Broiler Chicken as A Future Index Fossil
Oxytropidoceras posted a topic in Fossil News
The Evolution of the Chicken. Mark Berres. 2018.02.28 Wednesday Nite @ The Lab Published on Mar 1, 2018 https://www.youtube.com/watch?v=hXL2doMXWfg A related paper is: Bennett, C.E., Thomas, R., Williams, M., Zalasiewicz, J., Edgeworth, M., Miller, H., Coles, B., Foster, A., Burton, E.J. and Marume, U., 2018. The broiler chicken as a signal of a human reconfigured biosphere. Royal Society open science, 5(12), p.180325. https://royalsocietypublishing.org/doi/10.1098/rsos.180325 Some news article are: It Could Be the Age of the Chicken, Geologically With 65 billion chickens consumed each year, the signature fossil of the modern epoch may be the leftovers. James Gorman, New York Times, https://www.nytimes.com/2018/12/11/science/chicken-anthropocene-archaeology.html Are we living in the ‘age of the chicken’? Fossil record of man's time on Earth will be dominated by the bones of factory farmed hens Phoebe Weston Daily Mail https://www.dailymail.co.uk/sciencetech/article-6487397/Age-chicken-Anthropocene-fossil-record-dominated-bones-factory-farmed-hens.html How the domestic chicken rose to define the Anthropocene. Over the past 70 years, the bird has become a global staple, and could be the key fossil evidence for human-influenced epoch Damian Carrington, The Guardian https://www.theguardian.com/environment/2016/aug/31/domestic-chicken-anthropocene-humanity-influenced-epoch https://www.theguardian.com/environment/2016/aug/29/declare-anthropocene-epoch-experts-urge-geological-congress-human-impact-earth Yours, Paul H.- 1 reply
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Cats Domesticated Themselves, Ancient DNA Shows National Geographic, June 19,2017 http://news.nationalgeographic.com/2017/06/domesticated-cats-dna-genetics-pets-science/ Ancient DNA reveals role of Near East and Egypt in cat domestication, KU Leuven, June 19, 2017 http://nieuws.kuleuven.be/en/content/2017/domestication-of-the-cat-ancient-dna-reveals-significant-role-of-the-near-east-and-egypt https://www.sciencedaily.com/releases/2017/06/170619125825.htm "DNA found at archaeological sites reveals that the origins of our domestic cat are in the Near East and ancient Egypt. Cats were domesticated by the first farmers some 10,000 years ago. They later spread across Europe and other parts of the world via trade hub Egypt. The DNA analysis also revealed that most of these ancient cats had stripes: spotted cats were uncommon until the Middle Ages." the paper is: Claudio Ottoni, Wim Van Neer, Bea De Cupere, Julien Daligault, Silvia Guimaraes, Joris Peters, Nikolai Spassov, Mary E. Prendergast, Nicole Boivin, Arturo Morales-Muñiz, Adrian Bălăşescu, Cornelia Becker, Norbert Benecke, Adina Boroneant, Hijlke Buitenhuis, Jwana Chahoud, Alison Crowther, Laura Llorente, Nina Manaseryan, Hervé Monchot, Vedat Onar, Marta Osypińska, Olivier Putelat, Eréndira M. Quintana Morales, Jacqueline Studer, Ursula Wierer, Ronny Decorte, Thierry Grange, Eva-Maria Geigl. The palaeogenetics of cat dispersal in the ancient world. Nature Ecology & Evolution, 2017; 1 (7): 0139 DOI: 10.1038/s41559-017-0139 Online archive: http://biorxiv.org/content/early/2016/10/09/080028 PDF file: http://biorxiv.org/content/biorxiv/early/2016/10/09/080028.full.pdf Yours, Paul H.
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Catalog of 208 human-caused minerals bolsters argument for ‘Anthropocene Epoch’ Carnegie Legacy Project, Wednesday, March 01, 2017 https://carnegiescience.edu/news/first-ever-catalog-208-human-caused-minerals-bolsters-argument-declare-anthropocene-epoch Rock solid evidence of Anthropocene seen in 208 minerals we made. New scientist, Daily News, March 2, 2017 https://www.newscientist.com/article/2122874-rock-solid-evidence-of-anthropocene-seen-in-208-minerals-we-made/ Found: Thousands of Man-Made Minerals—Another Argument for the Anthropocene. Future geologists will find thousands of human-made minerals in the ruins of our civilization. Scientific American, March 1, 2017 https://www.scientificamerican.com/article/found-thousands-of-man-made-minerals-mdash-another-argument-for-the-anthropocene/ Minerals found in shipwreck and museum drawer 'show we are living in new epoch' Researchers say 208 of more than 5,200 officially recognised minerals are exclusively, or largely, linked to human activity merely in last 200 years to indicate Anthropocene age, The Guardian. https://www.theguardian.com/science/2017/mar/01/rock-of-ages-impact-of-manmade-crystals-defining-new-geological-epoch-study The paper is: Hazen, R. M., E. S. Grew, M. J. Origlieri, and R. T. Downs, 2017, On the mineralogy of the “Anthropocene Epoch.” American Mineralogist. DOI: 10.2138/am-2017-5875 Published on March 2017, First Published on March 01, 2017 http://ammin.geoscienceworld.org/content/102/3/595 Yours, Paul H.
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