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#conglomerate — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #conglomerate, aggregated by home.social.

  1. Leaching Of Legacy Paper Mill Sludge Induces Lithification By Cementation Of Fluvial Sediment
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    doi.org/10.1016/j.ancene.2025. <-- shared paper
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    [For almost 300 years – from 1709 to 2004 – Penicuik and district was producing high-quality paper which went out all over the world; Walter Scott’s Waverley novels and Robert Louis Stevenson’s notebooks were printed on Penicuik paper, and Turner painted on it too.]
    #Legacy #Papermill #Penicuik #Midlothian #scotland #Sludge #Anthropogenic #lithification #Conglomerate #Cementation #geology #water #hydrology #fluvial #sediment #calcium #leacging #river #stream #waterways #streambed #calciumcarbonate #CaCO3 #SEM #EDX #sampling #XRD #waste #wastemanagement #industrial #industry #industrialwaste #pollution #sedimentology #geochemistry #papermillsludge #PMS

  2. A bizarre #sedimentary feature

    Some layers in the #Neoproterozoic #Squantum Member of the #Roxbury #Conglomerate have been rolled up like a pie crust, into a tube. If this were a #tillite, as it once was thought to be, then it could have been caused by the drag of a #Gaskiers #glacier over the till. These rocks are mostly interpreted as deposited by submarine debris flows these days, in which case they could’ve been deformed during a slump and flow. Site of a field trip for #UMassBoston.

  3. A small #outcrop of the #Squantum Member of the #Roxbury #Conglomerate

    These #rocks are in the #BostonBay Group, which is currently dated to #Neoproterozoic. The Squantum Member was interpreted as a #tillite, possibly associated with the #Gaskiers #glaciation, although there a scant signs like scratched pebbles or faceted cobbles. It is currently commonly interpreted as a #debrite (debris flow). Details in captions.
    #geology #glacier #turbidite #Quincy #Boston #Massachusetts #NewEngland

  4. Possible dropstone in the Neoproterozoic Squantum Member of the Roxbury Conglomerate, Quincy, Massachusetts USA. See previous posts for more background.
    #geology #glaciology #turbidites #Neoproterozoic #sedimentary #conglomerate #rocks