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#bluehills — Public Fediverse posts

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

  1. Watch me suffer on the last step section leading to the Blue Hills Summit! 🤯🤯🤯 High heart rate, breathing hard!

    #BikeToot #cycling #Cyclist #BlueHills #Boston #Bike #climb #summit #HillClimb

  2. #Mafic enclave (?) in Rattlesnake Hill #Granite, #Massachusetts

    This Devonian granite intrudes #Proterozoic Dedham Granite south of #Boston. It is younger than the nearby Blue Hill Granite Porphyry. The triangular area is rich in large crystals, possibly hornblende. The blue crystals at lower left may be #riebeckite, another amphibole. Riebeckite gives Quincy Granite and the #BlueHills Range their distinctive color. All on Avalon terrane, out of Gondwana. Acadian Orogeny was Devonian. My #photo

  3. #Mafic enclave (?) in Rattlesnake Hill #Granite, #Massachusetts

    This Devonian granite intrudes #Proterozoic Dedham Granite south of #Boston. It is younger than the nearby Blue Hill Granite Porphyry. The triangular area is rich in large crystals, possibly hornblende. The blue crystals at lower left may be #riebeckite, another amphibole. Riebeckite gives Quincy Granite and the #BlueHills Range their distinctive color. All on Avalon terrane, out of Gondwana. Acadian Orogeny was Devonian. My #photo

  4. #Mafic enclave (?) in Rattlesnake Hill #Granite, #Massachusetts

    This Devonian granite intrudes #Proterozoic Dedham Granite south of #Boston. It is younger than the nearby Blue Hill Granite Porphyry. The triangular area is rich in large crystals, possibly hornblende. The blue crystals at lower left may be #riebeckite, another amphibole. Riebeckite gives Quincy Granite and the #BlueHills Range their distinctive color. All on Avalon terrane, out of Gondwana. Acadian Orogeny was Devonian. My #photo

  5. #Mafic enclave (?) in Rattlesnake Hill #Granite, #Massachusetts

    This Devonian granite intrudes #Proterozoic Dedham Granite south of #Boston. It is younger than the nearby Blue Hill Granite Porphyry. The triangular area is rich in large crystals, possibly hornblende. The blue crystals at lower left may be #riebeckite, another amphibole. Riebeckite gives Quincy Granite and the #BlueHills Range their distinctive color. All on Avalon terrane, out of Gondwana. Acadian Orogeny was Devonian. My #photo

  6. #Mafic enclave (?) in Rattlesnake Hill #Granite, #Massachusetts

    This Devonian granite intrudes #Proterozoic Dedham Granite south of #Boston. It is younger than the nearby Blue Hill Granite Porphyry. The triangular area is rich in large crystals, possibly hornblende. The blue crystals at lower left may be #riebeckite, another amphibole. Riebeckite gives Quincy Granite and the #BlueHills Range their distinctive color. All on Avalon terrane, out of Gondwana. Acadian Orogeny was Devonian. My #photo

  7. Waiting on Monet
    Water lilies and cattails in a eutrophic pond, lower St Moritz Pond, #BlueHills Reservation, #Quincy #Massachusetts. My #photo.
    #Fujifilm #XH1 60mm f/2.4 @ f/8 1/750 s ISO 400 auto DR jpg #landscape

  8. Waiting on Monet
    Water lilies and cattails in a eutrophic pond, lower St Moritz Pond, #BlueHills Reservation, #Quincy #Massachusetts. My #photo.
    #Fujifilm #XH1 60mm f/2.4 @ f/8 1/750 s ISO 400 auto DR jpg #landscape

  9. Waiting on Monet
    Water lilies and cattails in a eutrophic pond, lower St Moritz Pond, #BlueHills Reservation, #Quincy #Massachusetts. My #photo.
    #Fujifilm #XH1 60mm f/2.4 @ f/8 1/750 s ISO 400 auto DR jpg #landscape

  10. Quincy or #BlueHills #Porphyry #Granite
    An alkaline, nonorogenic granite intruded into #Avalonia in the #Silurian / #Ordovician as it cruised from peri-#Gondwana to #Laurentia, before assembling #Pangea in the #Acadian #Orogeny (#Devonian). It’s coarse, with the #phenocrysts of amphiboles(?) (possibly riebeckite?)…I’m no petrologist. From@the Eaton’s Pond conservation area@at the #Braintree #Quincy border. My photos.
    #geology #igneous #Massachusetts #Boston #NewEngland #Fujifilm #photo

  11. Where is Babel Rock?

    The #USGS #BlueHills #quad #bedrock map and a #Quincy #Massachusetts #historical #map show Babel Rock overlooks a pond from just north of a bend in #Wampatuck Rd. I have been on that rock, and it's #diabase, a #mafic #intrusion into the Quincy #pluton. But the USGS #topographic quad & derivatives e.g. #GoogleEarth show it adjacent to the #BunkerHill #quarry (source of the #granite for the monument in #Boston).

    Should a correction be proposed to USGS? Advice welcomed.

  12. Where is Babel Rock?

    The #USGS #BlueHills #quad #bedrock map and a #Quincy #Massachusetts #historical #map show Babel Rock overlooks a pond from just north of a bend in #Wampatuck Rd. I have been on that rock, and it's #diabase, a #mafic #intrusion into the Quincy #pluton. But the USGS #topographic quad & derivatives e.g. #GoogleEarth show it adjacent to the #BunkerHill #quarry (source of the #granite for the monument in #Boston).

    Should a correction be proposed to USGS? Advice welcomed.

  13. Where is Babel Rock?

    The #USGS #BlueHills #quad #bedrock map and a #Quincy #Massachusetts #historical #map show Babel Rock overlooks a pond from just north of a bend in #Wampatuck Rd. I have been on that rock, and it's #diabase, a #mafic #intrusion into the Quincy #pluton. But the USGS #topographic quad & derivatives e.g. #GoogleEarth show it adjacent to the #BunkerHill #quarry (source of the #granite for the monument in #Boston).

    Should a correction be proposed to USGS? Advice welcomed.

  14. Where is Babel Rock?

    The #USGS #BlueHills #quad #bedrock map and a #Quincy #Massachusetts #historical #map show Babel Rock overlooks a pond from just north of a bend in #Wampatuck Rd. I have been on that rock, and it's #diabase, a #mafic #intrusion into the Quincy #pluton. But the USGS #topographic quad & derivatives e.g. #GoogleEarth show it adjacent to the #BunkerHill #quarry (source of the #granite for the monument in #Boston).

    Should a correction be proposed to USGS? Advice welcomed.

  15. Where is Babel Rock?

    The #USGS #BlueHills #quad #bedrock map and a #Quincy #Massachusetts #historical #map show Babel Rock overlooks a pond from just north of a bend in #Wampatuck Rd. I have been on that rock, and it's #diabase, a #mafic #intrusion into the Quincy #pluton. But the USGS #topographic quad & derivatives e.g. #GoogleEarth show it adjacent to the #BunkerHill #quarry (source of the #granite for the monument in #Boston).

    Should a correction be proposed to USGS? Advice welcomed.