HR: 1340h
AN: B33A-0228    [Abstracts]
TI: Radiocarbon Dates Link Marine Incursion and Neoglacial Ice Terminus Advance With Tlingit Ethnohistory and Archeology in Lower Glacier Bay
AU: * Connor, C L
EM: cathy.connor@uas.alaska.edu
AF: Natural Sciences University Alaska Southeast, 11120 Glacier Highway, Juneau, AK 99801 United States
AU: Monteith, D
EM: daniel.monteith@uas.alaska.edu
AF: Social Sciences University Alaska Southeast, 11120 Glacier Highway, Juneau, AK 99801 United States
AU: Howell, W
EM: Wayne_Howell@nps.gov
AF: Glacier Bay National Park, P.O. Box 120, Gustavus, AK 99826 United States
AU: Strevelar, G
EM: grigori@gustavus.ak.us
AF: Icy Straits Environmental Services, P.O. Box 94, Gustavus, AK 99826 United States
AU: Leirer, M
EM: bubbabones23@hotmail.com
AF: Natural Sciences University Alaska Southeast, 11120 Glacier Highway, Juneau, AK 99801 United States
AB: Radiocarbon dates from wood, organic sediments, and marine shells were collected from eroded beach terraces and upper beach sediments in the Beardslee Islands and Berg Bay in Glacier Bay National Park, Alaska. These provide a timetable for the the outwash plain construction and final advance of the Late Neoglacial glacier front over this outwash plain into lower Glacier Bay. On Kidney Island in the central Beardslee Islands, marine sediments containing {\it Macoma baltica} shells were deposited 4310 +/- 40 years BP. Outwash from advancing up-bay glaciers, buried these sediments and created terrestrial substrates upon which forests existed by 1630 +/- 60 BP and 1300 +/- 50 yrs BP. Final ice advance over this forested outwash plain occurred after 430 +/- 60 BP (1430 to 1510 AD) on Kidney Island. This ice arrived at the southern edge of Lester Island in Bartlett Cove after 370 +/- 50 BP (1440 to 1520 AD); preceding the arrival of George Vancouver in 1794 AD. In nearby Icy Straits, archeological investigations have yielded some of the oldest dates of human occupation in the region at 10,180 +/- 800 uncorrected years BP (Ackerman, 1968). In Glacier Bay's ethno-historically rich areas of Bartlett Cove, the Beardslee Islands and Berg Bay the Huna people have names for places and narratives that describe late Neoglacial landscapes. {\bf S'\'{e} Shuyee} is the "area at the end of the glacial mud", {\bf L'awsha Shakee Aan} "town on top of the glacial sand dunes". There are accounts of villages overrun by surging glaciers, and a name for the bay {\bf Sit' eeti Geeyi} that translates as "bay in place of the glacier". These dates provide linkage between the geological, archeological, and ethnohistorical evidence that chronicles the history of the Huna people in this dynamic glacier marine environment.
DE: 4842 Modeling
DE: 3210 Modeling
DE: 3309 Climatology (1620)
DE: 1615 Biogeochemical processes (4805)
DE: 1620 Climate dynamics (3309)
SC: Biogeosciences [B]
MN: 2004 AGU Fall Meeting