DOI: 10.5061/dryad.jm63xsjkw
title: Two millennial-scale paleolimnological records from San Salvador Island, Bahamas

description: Paleolimnological data from Moon Rock Pond (MRP) and Crescent Pond (CP) on
 San Salvador Island, Bahamas. This data was derived from analysis of
 gravity cores retrieved from each pond using UWITEC core barrels (core
 MRP20-01, 39.6 cm long; core CP20-01, 45.6 cm long) and 4.5 cm-diameter
 Glew-style core barrels (core MRP20-02, 41.0 cm; core CP20-02, 48.5 cm).
 Grain size and End Member Modelling Analysis (EMMA) were carried out on
 cores MRP20-01 and CP20-01, revealing six and four robust end members,
 respectively. X-ray fluorescence (XRF) analysis was performed on cores
 MRP20-02 and CP20-02 using the Itrax core scanner. Radiocarbon dating of
 the cores MRP20-01 and CP20-01 indicated that the cores span several
 thousand years (Moon Rock Pond, ~3,100 years; Crescent Pond, ~3,900
 years). Together, these datasets archive records of environmental change
 in the Bahamas during the late Holocene.
description: Upon retrieval, cores MRP20-01 and CP20-01 were subsampled
 on-site at 1-mm resolution using a portable, high-resolution sediment core
 extruder, refrigerated, and transferred to Carleton University, Ottawa,
 Canada, for subsequent analysis. The subsamples were preprocessed for
 grain size analysis; briefly, 30%
 H<sub>2</sub>O<sub>2</sub> was added to the
 subsamples and placed in an 80°C water bath to oxidize organic matter.
 After preprocessing, the subsamples were analyzed using a Beckman Coulter
 LS 13 320 laser diffraction grain size analyzer equipped with a universal
 liquid module to yield a 93-bin grain size distribution ranging from 0.375
 μm to 2,000 μm. The grain size data was then used for End Member Modelling
 Analysis (EMMA), which produced six and four end members for Moon Rock
 Pond and Crescent Pond, respectively. Cores MRP20-02 and CP20-02 were
 dewatered on site, refrigerated, and transported to McMaster University,
 Hamilton, Canada, for X-ray fluorescence (XRF) analysis. The cores were
 halved lengthwise and analyzed stepwise at 0.2 mm increments by a Cox
 Itrax XRF Core Scanner. 
description: # Two millennial-scale paleolimnological records from San Salvador Island,
 Bahamas --- Paleolimnological data from Moon Rock Pond (MRP) and Crescent
 Pond (CP) on San Salvador Island, Bahamas. This data was 0derived from
 analysis of gravity cores retrieved from each pond using UWITEC core
 barrels (core MRP20-01, 39.6 cm long; core CP20-01, 45.6 cm long) and 4.5
 cm-diameter Glew-style core barrels (core MRP20-02, 39.8 cm; core CP20-02,
 47.7 cm). Grain size and End Member Modelling Analysis were carried out on
 cores MRP20-01 and CP20-01, revealing six and four robust end members,
 respectively. ITRAX XRF analysis was performed on cores MRP20-02 and
 CP20-02. Radiocarbon dating of the cores MRP20-01 and CP20-01 indicated
 that the cores span several thousand years (Moon Rock Pond, ~3,100 years;
 Crescent Pond, ~3,900 years). Together, these data archive records of
 environmental change in the Bahamas during the late Holocene. ##
 Description of the data and file structure File list: File 1 name:
 MoonRockPond_GrainSize.csv File 1 description: particle size analysis bins
 in microns and associated calendar dates for Moon Rock Pond core MRP20-01.
 Grain size bins (n=93) range from 0.375 μm to 2,000 μm. File 2 name:
 CrescentPond_GrainSize.csv File 2 description: particle size analysis bins
 in microns and associated calendar dates for Crescent Pond core CP20-01.
 Grain size bins (n=93) range from 0.375 μm to 2,000 μm. File 3 name:
 MoonRockPond_EMMA.csv File 3 description: End Member Modelling Analysis
 (EMMA) results and associated calendar dates for Moon Rock Pond core
 subsamples: MRP20-01. EMMA results are in percentage; all EM columns (EM01
 to EM06) for a given sample will sum to 100. File 4 name:
 CrescentPond_EMMA.csv File 4 description: End Member Modelling Analysis
 (EMMA) results and associated calendar dates for Crescent Pond core
 subsamples: CP20-01. EMMA results are in percentage; all EM columns (EM01
 to EM04) for a given sample will sum to 100. File 5 name:
 MoonRockPond_ITRAX.csv File 5 description: ITRAX X-Ray Fluorescence
 results and associated calendar dates for Moon Rock Pond core MRP20-02.
 Data includes counts per second (cps) of various elements, total cps, and
 other instrument readouts. File 6 name: CrescentPond_ITRAX.csv File 6
 description: ITRAX X-Ray Fluorescence results and associated calendar
 dates for Crescent Pond core CP20-02. Data includes counts per second
 (cps) of various elements, total cps, and other instrument readouts.