Glacialmarine facies relations in the lower Androscoggin Valley, southwest Maine
A facies model is proposed for late Wisconsinan glaciomarine deposits in the lower Androscoggin Valley that includes for lithofacies assemblages that are defined by morphology and detailed stratigraphic and sedimentologic analysis. The end moraine facies assemblage includes subglacial and resediment...
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1989
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ftbatescollege:oai:scarab.bates.edu:faculty_publications-1055 2023-05-15T18:33:04+02:00 Glacialmarine facies relations in the lower Androscoggin Valley, southwest Maine Retelle, Michael Bither, Katherine M. 1989-01-01T08:00:00Z application/pdf https://scarab.bates.edu/faculty_publications/60 https://scarab.bates.edu/cgi/viewcontent.cgi?article=1055&context=faculty_publications unknown SCARAB https://scarab.bates.edu/faculty_publications/60 https://scarab.bates.edu/cgi/viewcontent.cgi?article=1055&context=faculty_publications This is the publisher's version of the work. This publication appears in Bates College's institutional repository by permission of the copyright owner for personal use, not for redistribution. All Faculty Scholarship text 1989 ftbatescollege 2022-03-22T09:19:48Z A facies model is proposed for late Wisconsinan glaciomarine deposits in the lower Androscoggin Valley that includes for lithofacies assemblages that are defined by morphology and detailed stratigraphic and sedimentologic analysis. The end moraine facies assemblage includes subglacial and resedimented diamicton, and interbedded and locally deformed sand and gravel beds. The sediments from linear ridges which are former grounding line positions of the tidewater glacier margin. The submarine outwash fan facies assemblage commonly drapes or flanks the end moraine assemblage. In proximal regions of the fan, gravel, bedded sand, and diamicton lithofacies predominate and represent rapid deposition at the mouth of the meltwater tunnel by fluvial and mass flow processes. Distal and lateral to the ice margin, fan sediments consist of graded and cross-laminated sands deposited from suspension. The shallow marine facies assemblage consists of well-sorted tidal to subtidal sand lithofacies, poorly sorted gravelly and bouldery lad deposits on moraine crests, and lagoonal muds. Collectively, these lithofacies were deposited as a result of reworking previously deposited sediments during isostatic emergence. Text Tidewater Bates College: SCARAB (Scholarly Communication and Research at Bates) |
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Bates College: SCARAB (Scholarly Communication and Research at Bates) |
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ftbatescollege |
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unknown |
description |
A facies model is proposed for late Wisconsinan glaciomarine deposits in the lower Androscoggin Valley that includes for lithofacies assemblages that are defined by morphology and detailed stratigraphic and sedimentologic analysis. The end moraine facies assemblage includes subglacial and resedimented diamicton, and interbedded and locally deformed sand and gravel beds. The sediments from linear ridges which are former grounding line positions of the tidewater glacier margin. The submarine outwash fan facies assemblage commonly drapes or flanks the end moraine assemblage. In proximal regions of the fan, gravel, bedded sand, and diamicton lithofacies predominate and represent rapid deposition at the mouth of the meltwater tunnel by fluvial and mass flow processes. Distal and lateral to the ice margin, fan sediments consist of graded and cross-laminated sands deposited from suspension. The shallow marine facies assemblage consists of well-sorted tidal to subtidal sand lithofacies, poorly sorted gravelly and bouldery lad deposits on moraine crests, and lagoonal muds. Collectively, these lithofacies were deposited as a result of reworking previously deposited sediments during isostatic emergence. |
format |
Text |
author |
Retelle, Michael Bither, Katherine M. |
spellingShingle |
Retelle, Michael Bither, Katherine M. Glacialmarine facies relations in the lower Androscoggin Valley, southwest Maine |
author_facet |
Retelle, Michael Bither, Katherine M. |
author_sort |
Retelle, Michael |
title |
Glacialmarine facies relations in the lower Androscoggin Valley, southwest Maine |
title_short |
Glacialmarine facies relations in the lower Androscoggin Valley, southwest Maine |
title_full |
Glacialmarine facies relations in the lower Androscoggin Valley, southwest Maine |
title_fullStr |
Glacialmarine facies relations in the lower Androscoggin Valley, southwest Maine |
title_full_unstemmed |
Glacialmarine facies relations in the lower Androscoggin Valley, southwest Maine |
title_sort |
glacialmarine facies relations in the lower androscoggin valley, southwest maine |
publisher |
SCARAB |
publishDate |
1989 |
url |
https://scarab.bates.edu/faculty_publications/60 https://scarab.bates.edu/cgi/viewcontent.cgi?article=1055&context=faculty_publications |
genre |
Tidewater |
genre_facet |
Tidewater |
op_source |
All Faculty Scholarship |
op_relation |
https://scarab.bates.edu/faculty_publications/60 https://scarab.bates.edu/cgi/viewcontent.cgi?article=1055&context=faculty_publications |
op_rights |
This is the publisher's version of the work. This publication appears in Bates College's institutional repository by permission of the copyright owner for personal use, not for redistribution. |
_version_ |
1766217359331164160 |