1. Forum
  2. Usenet
  3. SCI.ANTHROPOLOGY.PALEO

  • Anthropocene & shell-middens

    From littoral.homo@gmail.com@21:1/5 to All on Wed Aug 2 14:50:33 2023
    Shell middens and other anthropogenic soils as global stratigraphic signatures of the Anthropocene
    Jon Erlandson 2013 Anthropocene 4:24-32 https://www.sciencedirect.com/science/article/abs/pii

    Evidence for aquatic foraging, fishing & scavenging by hominins dates back at least 2 Ma,
    but aquatic resource use intensified with the appearance of H.sapiens.
    The development of new fishing & sea-faring technologies contributed to Hs population growth & spread around the world.
    By the late-Pleisto- & early-Holocene, fishing peoples lived along coast-lines, rivers & lakes in Africa, Eurasia, Australia & the Americas,
    they created shell-midden soils, marked by accumulations of mollusk shells, animal bones, artifacts & other cultural debris.
    After global sea-level rise slowed ∼8 ka, a proliferation of shell-middens formed an increasingly prominent stratigraphic signature for identifying & defining an Anthropocene Epoch.
    The fm of these distinctive cultural soils (often marked by unique soil chemistry & biotic communities) is essentially contemporaneous with
    - the development of agricultural economies &
    - the widespread soil & landscape changes ass.x them.
    Defined by these global & highly visible anthropogenic soil signatures, I propose:
    the Anthropocene began c 10 ka, and should replace, or be merged with the Holocene.

    /S2213305413000416

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From JTEM is so reasonable@21:1/5 to All on Mon Aug 14 14:08:59 2023
    There is no such thing as "Anthropocene." It's an entirely POLITICAL
    and not scientific designation.

    Life changes the planet earth. The first mass extinction, ever, we
    know of happened about 2 billion years ago, when most life
    expelled oxygen as a waste product. It was effectively a poison
    to this life. The atmosphere eventually got saturated, rocks
    started to oxidize... there was a mass die-off from all this poisonous
    oxygen.

    Life changed the oceans, life changed the atmosphere and it even
    changed the rocks!

    "Anthropocene" is politics. It's part of the Gwobull Warbling narrative.




    -- --

    https://jtem.tumblr.com/post/725527049879552000

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From littoral.homo@gmail.com@21:1/5 to All on Tue Aug 15 04:39:55 2023
    Op maandag 14 augustus 2023 om 23:09:00 UTC+2 schreef JTEM is so reasonable:
    There is no such thing as "Anthropocene." It's an entirely POLITICAL
    and not scientific designation.
    Life changes the planet earth. The first mass extinction, ever, we
    know of happened about 2 billion years ago, when most life
    expelled oxygen as a waste product. It was effectively a poison
    to this life. The atmosphere eventually got saturated, rocks
    started to oxidize... there was a mass die-off from all this poisonous oxygen.
    Life changed the oceans, life changed the atmosphere and it even
    changed the rocks!
    "Anthropocene" is politics. It's part of the Gwobull Warbling narrative.

    Erlandson didn't mean anything political, I'd think.
    Why did we largely leave our diving lifestyle?
    Language? fire? agriculture? ...? combination?
    Rice still grows in shallow water.

    "Shell middens and other anthropogenic soils as global stratigraphic signatures of the Anthropocene"
    Jon Erlandson 2013 Anthropocene 4:24-32 https://www.sciencedirect.com/science/article/abs/pii
    "... After global sea-level rise slowed ∼8 ka, a proliferation of shell-middens formed an increasingly prominent stratigraphic signature for identifying & defining an Anthropocene Epoch.
    The fm of these distinctive cultural soils (often marked by unique soil chemistry & biotic communities) is essentially contemporaneous with
    - the development of agricultural economies &
    - the widespread soil & landscape changes ass.x them. ..."

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)