Vegetation Changes around Haven Lake, Adak Island, Central Aleutians, Alaska, Determined from Pollen Analysis. Issue 5 (19th November 2018)
- Record Type:
- Journal Article
- Title:
- Vegetation Changes around Haven Lake, Adak Island, Central Aleutians, Alaska, Determined from Pollen Analysis. Issue 5 (19th November 2018)
- Main Title:
- Vegetation Changes around Haven Lake, Adak Island, Central Aleutians, Alaska, Determined from Pollen Analysis
- Authors:
- Noguchi, Makoto
Fujiki, Toshiyuki
Okuno, Mitsuru
Gualtieri, Lyn
Hatfield, Virginia
Sarata, Brenn
Torii, Masayuki
Wada, Keiji
Nakamura, Toshio
West, Dixie - Editors:
- Molnár, Mihály
Jull, A.J.T. - Abstract:
- ABSTRACT: We collected peat sediments (sediment core ADK13083002) from Haven Lake on the north side of Adak Island (central Aleutian Islands, Alaska) to determine whether the vegetation has changed. We confirmed the presence of six tephra layers, including Forty Years (0.3 cal ka BP), T2, YBO (3.3 cal ka BP), Intermediate (6.4 cal ka BP), Main (9.5 cal ka BP), and T6. We identified four major pollen assemblage zones (HL-1 to HL-4, in descending order) in the cored sediment. HL-1 was dominated by Ranunculaceae and Empetrum pollen; H-2 was dominated by Poaceae, Ranunculaceae, and Empetrum pollen; HL-3 was dominated by Poaceae and Empetrum pollen; and HL-4 was dominated by Poaceae, Cyperaceae, Lycopodiaceae, and Empetrum pollen. Small charcoal particles, likely transported from a distance, were found at low frequencies until 6.4 cal ka BP. The total cross-sectional area of charcoal particles increased to 1500 μm 2 or more by 6.4 cal ka BP, implying that the large charcoal particles originated from nearby Aleut settlements, which were established around the same time.
- Is Part Of:
- Radiocarbon. Volume 60:Issue 5(2018)
- Journal:
- Radiocarbon
- Issue:
- Volume 60:Issue 5(2018)
- Issue Display:
- Volume 60, Issue 5 (2018)
- Year:
- 2018
- Volume:
- 60
- Issue:
- 5
- Issue Sort Value:
- 2018-0060-0005-0000
- Page Start:
- 1483
- Page End:
- 1492
- Publication Date:
- 2018-11-19
- Subjects:
- AMS radiocarbon dating, -- pollen analysis, -- vegetation change
Radiocarbon dating -- Periodicals
930.1028505 - Journal URLs:
- http://radiocarbon.library.arizona.edu/ ↗
http://www.radiocarbon.org/ ↗
http://journals.cambridge.org/action/displayJournal?jid=RDC ↗
https://www.cambridge.org/core/journals/radiocarbon ↗
http://www.catchword.com/rpsv/catchword/arizona/00338222/contp1-1.htm ↗ - DOI:
- 10.1017/RDC.2018.103 ↗
- Languages:
- English
- ISSNs:
- 0033-8222
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library HMNTS - ELD Digital store
- Ingest File:
- 9068.xml