Rocks of Little Rhody, Part 1: Atlantic Ocean Sea Mist Drifting over the Purgatory Conglomerate | Middletown, Rhode Island, USA
Taken at the Purgatory Chasm locale, on the rocky western coast of Sachuest Bay. Facing northeastward.
This famous outcrop, much beloved of soft-rock geologists, features a pale-gray, mostly coarse (and sometimes very coarse) quartzite-clast conglomerate that dates to the Pennsylvanian subperiod (Upper Carboniferous).
This region of the Eastern Seaboard belongs to the Avalonian Terrane—originally a microcontinent associated with the supercontinent Gondwana. The perpatetic landmass of Avalonia migrated far from its original setting and eventually collided with Laurentia, an ancient predecessor of North America. In doing so, it formed part of what is now New England and Canada's Maritime Provinces.
To see the other photos and descriptions in this set, visit my my Rocks of Little Rhody album.
Rocks of Little Rhody, Part 1: Atlantic Ocean Sea Mist Drifting over the Purgatory Conglomerate | Middletown, Rhode Island, USA
Taken at the Purgatory Chasm locale, on the rocky western coast of Sachuest Bay. Facing northeastward.
This famous outcrop, much beloved of soft-rock geologists, features a pale-gray, mostly coarse (and sometimes very coarse) quartzite-clast conglomerate that dates to the Pennsylvanian subperiod (Upper Carboniferous).
This region of the Eastern Seaboard belongs to the Avalonian Terrane—originally a microcontinent associated with the supercontinent Gondwana. The perpatetic landmass of Avalonia migrated far from its original setting and eventually collided with Laurentia, an ancient predecessor of North America. In doing so, it formed part of what is now New England and Canada's Maritime Provinces.
To see the other photos and descriptions in this set, visit my my Rocks of Little Rhody album.