Chris White · @Ceedave
124 followers · 228 posts · Server sciencemastodon.com
Interbedded argillaceous & tuffaceous #sediments
These photos are of #Cambridge #Argillite, exposed above the #Squantum Member of the #Roxbury Conglomerate (#Neoproterozoic). Prior to the 1970s or so, the Squantum Member was interpreted as #glacial sediments; it's now broadly interpreted as debris flows, with the Cambridge being distal turbidites overlying it. I lead a field trip here for #UMassBoston. See captions.
#outcrop #fieldTrip #photo #rocks #tuff #Fufjilm #Venus 65mm #macro #Quincy
#sediments #cambridge #argillite #squantum #roxbury #Neoproterozoic #glacial #umassboston #outcrop #fieldtrip #photo #rocks #tuff #fufjilm #venus #macro #quincy
Chris White · @Ceedave
124 followers · 228 posts · Server sciencemastodon.comInterbedded argillaceous & tuffaceous #sediments
These photos are of #Cambridge #Argillite, exposed above the #Squantum Member of the #Roxbury Conglomerate (#Neoproterozoic). Prior to the 1970s or so, the Squantum Member was interpreted as #glacial sediments; it's now broadly interpreted as debris flows, with the Cambridge being distal turbidites overlying it. I lead a field trip here for #UMassBoston. See captions.
#outcrop #fieldTrip #photo #rocks #tuff #Fufjilm #Venus 15mm #macro #Quincy
#sediments #cambridge #argillite #squantum #roxbury #Neoproterozoic #glacial #umassboston #outcrop #fieldtrip #photo #rocks #tuff #fufjilm #venus #macro #quincy
Chris White · @Ceedave
124 followers · 228 posts · Server sciencemastodon.comInterbedded argillaceous & tuffaceous #sediments
These photos are of #Cambridge #Argillite, exposed above the #Squantum Member of the #Roxbury Conglomerate (#Neoproterozoic). Prior to the 1970s or so, the Squantum Member was interpreted as #glacial sediments; it's now broadly interpreted as debris flows, with the Cambridge being distal turbidites overlying it. I lead a field trip here for #UMassBoston. See captions.
#outcrop #fieldTrip #photo #rocks #tuff #Fufjilm #Venus 15mm #macro #Quincy
#sediments #cambridge #argillite #squantum #roxbury #Neoproterozoic #glacial #umassboston #outcrop #fieldtrip #photo #rocks #tuff #fufjilm #venus #macro #quincy