DOI: 10.1016/j.quascirev.2015.06.024
Scopus记录号: 2-s2.0-84937576848
论文题名: Reconstructing water level in Hoyo Negro, Quintana Roo, Mexico, implications for early Paleoamerican and faunal access
作者: Collins S.V. ; Reinhardt E.G. ; Rissolo D. ; Chatters J.C. ; Nava Blank A. ; Luna Erreguerena P.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 124 起始页码: 68
结束页码: 83
语种: 英语
英文关键词: Anchialine
; Cave sediments
; Glacioeustasy
; Holocene sea-level
; Hoyo Negro
; Paleoamericans
; Paleoenvironmental reconstruction
; Yucatan
Scopus关键词: Animals
; Calcite
; Ceilings
; Deposition
; Floods
; Manures
; Sea level
; Water levels
; Anchialine
; Glacioeustasy
; Holocene sea level
; Hoyo Negro
; Paleoamericans
; Paleoenvironmental reconstruction
; Yucatan
; Sediments
; cave deposit
; facies
; faunistics
; flooding
; glacioeustacy
; Holocene
; paleoenvironment
; radiocarbon dating
; reconstruction
; sediment core
; skeletal remains
; water level
; Mexico [North America]
; Quintana Roo
; Animalia
; Foraminifera
; Ostracoda
英文摘要: The skeletal remains of a Paleoamerican (Naia; HN5/48) and extinct megafauna were found at-40 to-43 mbsl in a submerged dissolution chamber named Hoyo Negro (HN) in the Sac Actun Cave System, Yucatan Peninsula, Mexico. The human remains were dated to between 12 and 13 Ka, making these remains the oldest securely dated in the Yucatan. Twelve sediment cores were used to reconstruct the Holocene flooding history of the now phreatic cave passages and cenotes (Ich Balam, Oasis) that connect to HN. Four facies were found: 1. bat guano and Seed (SF), 2. lime Mud (MF), 3. Calcite Rafts (CRF) and 4. Organic Matter/Calcite Rafts (OM/CRF) which were defined by their lithologic characteristics and ostracod, foraminifera and testate amoebae content. Basal radiocarbon ages (AMS) of aquatic sediments (SF) combined with cave bottom and ceiling height profiles determined the history of flooding in HN and when access was restricted for human and animal entry. Our results show that the bottom of HN was flooded at least by 9850cal yr BP but likely earlier. We also found, that the pit became inaccessible for human and animal entry at ≈8100cal yr BP, when water reaching the cave ceiling effectively prevented entry. Water level continued to rise between ≈6000 and 8100cal yr BP, filling the cave passages and entry points to HN (Cenotes Ich Balam and Oasis). Analysis of cave facies revealed that both Holocene sea-level rise and cave ceiling height determined the configuration of airways and the deposition of floating and bat derived OM (guano and seeds). Calcite rafts, which form on the water surface, are also dependent on the presence of airways but can also form in isolated air domes in the cave ceiling that affect their loci of deposition on the cave bottom. These results indicated that aquatic cave sedimentation is transient in time and space, necessitating extraction of multiple cores to determine a limit after which flooding occurred. © 2015 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59850
Appears in Collections: 过去全球变化的重建
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作者单位: School of Geography and Earth Sciences, McMaster University, Hamilton, ON, Canada; Center of Interdisciplinary Science for Art, Architecture, and Archaeology (CISA3), Qualcomm Institute, UCSD Division of Calit2, University of California, San Diego, United States; Applied Paleoscience and DirectAMS, 10322 NE 190th Street, Bothell, WA, United States; Bay Area Underwater Explorers, CISA3/UCSD, Berkeley, CA, United States; Subdirección de Arqueología Subacuática, Instituto Nacional de Antropología e Historia, Mexico City, Mexico
Recommended Citation:
Collins S.V.,Reinhardt E.G.,Rissolo D.,et al. Reconstructing water level in Hoyo Negro, Quintana Roo, Mexico, implications for early Paleoamerican and faunal access[J]. Quaternary Science Reviews,2015-01-01,124