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Memorial University - Electronic Theses and Dissertations 1
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Document Description
TitleQuaternary history, palaeo-geography and sedimentology of the Humber River Basin and adjacent areas
AuthorBatterson, Martin J. (Martin Jonathan), 1957-
DescriptionThesis (Ph.D.)--Memorial University of Newfoundland, 1999. Physicial Geography
Date1998
Paginationxxi, 540 leaves : ill. (some col.), maps (1 map fold. in pocket)
SubjectPaleogeography--Quaternary; Paleogeography--Newfoundland and Labrador--Humber River Basin; Geology, Stratigraphic--Newfoundland and Labrador--Humber River Basin; Geology, Stratigraphic--Quaternary
DegreePh.D.
Degree GrantorMemorial University of Newfoundland. Dept. of Geography
DisciplineEarth Sciences
LanguageEng
Spatial CoverageCanada--Newfoundland and Labrador--Humber River Basin
Temporal CoverageQuaternary Period
NotesBibliography: leaves 424-473.
AbstractThe Humber River basin in western Newfoundland was completely glaciated during the Quaternary. Glacial erosional features show an early southward ice flow from a source north of the basin that covered the coastal margins in the western part of the basin, including the Harrys River valley. Subsequent regional ice flow was southwestward to northwestward from a dispersal centre on The Topsails. South to southwestward flowing ice from the Long Range Mountains occupied the upper Humber River valley. This flow was confluent with ice from The Topsails flowing northwestward towards Bonne Bay. -- Ice retreated from the inner coast about 13 ka. During retreat, ice occupying the Deer Lake Valley dammed a proglacial lake in the adjacent Grand Lake basin to an elevation up to 85 m above present lake levels, as interpreted from strandlines on the west side and deltas on the east. This lake, named glacial Lake Howley, drained through its western end into the Harrys River valley via a well-defined channel. Drainage followed the modem Harrys River valley, reaching the sea in northern St. George's Bay. The lake was lowered by exposure of the South Brook valley outlet, and finally drained catastrophically through a spillway at Junction Brook. -- Marine incursion accompanied glacial retreat in the Deer Lake valley. Marine limit at the coast was 60 m asl, based on the elevation of a delta in the Hughes Brook valley. Inland deltas found at the head of Deer Lake and fine-grained sediment exposed within the Deer Lake valley show inundation below 45 m modem elevation. Dated marine macro-fossils in the Humber Arm and lower Humber River valley, indicate the deltas at the head of Deer Lake formed about 12.5 ka.
TypeText
Resource TypeElectronic thesis or dissertation
FormatImage/jpeg; Application/pdf
SourcePaper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifiera1355283
RightsThe author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
CollectionElectronic Theses and Dissertations
Scanning StatusCompleted
PDF File(73.06 MB) -- http://collections.mun.ca/PDFs/theses/MartinJonathanBatterson2.pdf
CONTENTdm file name58289.cpd