Lake Suigetsu 2006 Varved Sediment Core Project

Welcome and thank you for visiting the Lake Suigetsu 2006 Varved Sediment Core Project web page. This page is designed to be the source for information on our project.

Index: / Stratigraphy / Core images / Software / Macro remains / Age-depth model / Published data / Unpublished data / Meetings / Misc.

Contents:

Stratigraphy and correlation model
- Drilling depth (ppt and pdf)
- Composite depth (ppt and pdf)
- Correlation model
  - Latest model (xlsx, 06 Apr. 2020; rational for revision)
  - Previous versions (xlsx, 25 Nov. 2019; xlsx, 28 Feb. 2019; xlsx, 29 Sep. 2018; xls, 24 Aug. 2009)
- SG06/SG14 complete package of correlation data (package, 01 Jun. 2021) - Updated!
- SG06 correlation data for LF/LFduo
  - 1. Correlation model (csv, 06 Apr. 2020) - Updated!
  - 2. List of event layers (csv, 13 Feb. 2017)
  - 3. Age-depth model
    - IntCal13 yr BP chronology (csv, 06 Apr. 2020) - Updated!
    - IntCal20 yr BP chronology (csv, 01 Jun. 2021) - New!
    - U-Th yr BP chronology (csv, 21 May 2020) - New!
    - SG06₂₀₁₂ yr BP chronology (csv, 06 Apr. 2020) - Updated!
  - Previous versions
    - 1. Correlation model (csv, 28 Feb. 2019; csv, 08 May 2016; csv, 20 Apr. 2015; csv, 28 Sep. 2012; csv, 24 Aug. 2009)
    - 2. List of event layers (csv, 29 Jan. 2011; csv, 29 Jan. 2011)
    - 3. Age-depth model
      - IntCal13 yr BP chronology (csv, 25 Nov. 2019; csv, 20 May 2017)
      - SG06₂₀₁₂ yr BP chronology (Official Bronk Ramsey et al. (2012) chronology) (csv, 19 May 2012)
      - SG06₂₀₁₂ vyr BP chronology (Marshall et al. (2012) chronology) (csv, 19 May 2012)
      - Unofficial age-depth model based on IntCal09/04 (csv, 20 Feb. 2012)
Core section images
- Borehole gallery (07 Feb. 2007)
- Borehole gallery service pack-1 (29 Aug. 2009)
Public domain software
- LevelFinder
Macro remains
- Sampling horizons (ppt and pdf, 27 Sep. 2007)
- Sample description (xls, 04 Jun. 2008)
- Sample photo gallery (19 May 2009) / Samples in vial bottoms (20 May 2008)
Age-depth model
- Bronk Ramsey et al. (2012)
- XlXtrFun (a powerful Excel add-in for interpolation)
  - Sample file (xls)
Published data
- Under construction
Unpublished data
- Analytical results
  - Package for LevelFinder (package, 09 Feb. 2024) - Updated!
  - Tephra stratigraphy
    - List of visible tephra (xls, 02 Jun. 2009) 11-13 Jan. 2011 Glasgow
    - Shard concentration (low-resolution scanning) (csv, 19 May 2010)
  - Radiocarbon dating
    - Radiocarbon dates (xls, 05 Feb. 2010)
    - Delta 14C (xls and csv, 01 Feb. 2011)
  - Varve counting
    - LGIT merged (thin section and XRF) final varve counts (under construction)
    - Whole section varve counts by XRF scanner only (xls, 12 Mar. 2009)
  - Beryllium-10 analysis
    - Be-10 data (xls and csv, 19 Feb. 2009)
  - OSL dating (under construction)
  - Pollen analysis
    - Low-resolution scanning of the whole core
      - Raw count data (xls, 27 Oct. 2007)
      - Pollen-based climate reconstruction (xls, 27 Oct. 2007)
      - Pollen stratigraphy (jpeg and Corel Draw, 27 Oct. 2007)
      - Biome reconstruction results (xls) and report (pdf) (25 Feb. 2009)
    - High-resolution analysis of the LGIT
      - Raw count data (xls, 20 Oct. 2008)
      - Pollen-based climate reconstruction (xls, 20 Oct. 2008)
      - Pollen and climate stratigraphy (jpeg, Illustrator, Corel Draw, pdf, 20 Oct. 2008)
    - High-resolution analysis of the D-O events 8-13
      - (under construction)
    - High-resolution analysis of the 8.2 ka event
      - Raw count data (xls, 24 Aug. 2011)
      - Pollen-based climate reconstruction (xls, 24 Aug. 2011)
      - Pollen and climate stratigraphy (jpeg, Illustrator, pdf, 24 Aug. 2011)
    - Combined pollen data for LevelFinder (including high-resolution data from 7.6-8.5 ka and 10-48 ka)
      - Percentage data (csv, 04 Feb. 2024) - Updated!
      - EOF (csv, 09 Feb. 2024) - New!
      - Reconstructed climate (csv, 08 Feb. 2024) - Updated!
    - Visual catalogue of fossil pollen in Lake Suigetsu
  - Diatom analysis
    - Scanning of LGIT section (flux and ratio) (xls and csv, 31 May 2010)
    - Full data for whole section (flux) (csv, 25 May 2017)
    - High-resolution diatom data at LGIT event boundaries (csv, 31, Aug. 2010)
  - Physical property analysis
    - Water content and dry bulk density data (xls and csv, 26 May 2009)
    - Water content data by XGT (xls and csv, 31 May 2010)
  - Geochemical analysis
    - Organic chemistry and stable isotope data (xls and csv, 26 May 2009)
    - Low-resolution compound specific chemistry and stable isotope data (xls and csv, 28 Feb. 2009)
    - Major element data by XGT (xls and csv, 31 May 2010)
    - LGIT and 8.2 ka biomarker analyses (csv, 11 Jan. 2011)
  - Itrax XRF scanning
    - Elemental data (original cps data in holy trinity format)
    - Elemental data
      - 11-year resolution data for whole scanned section (xls and csv, 10 May 2010)
      - Annual resolution data for LGIT (xls and csv, 10 May 2010)
      - 1 mm resolution data for whole scanned section (xls, 16 Jun. 2010)
      - 60 micron resolution data for whole scanned section (xlsx, 16 Jun. 2010) (Caution! 240 MB)
      - Major element data (corrected using conventional XRF data) (csv, 09 Aug. 2010)
    - Radiography grayscale data
      - 11-year resolution grayscale data for whole scanned section (xls and csv, 23 Sep. 2009)
    - Updates - New!
      - Read me
      - Major element data (corrected using conventional XRF data): csv
      - 1 mm resolution data for whole scanned section: xls
  - Microfacies analysis by thin section
    - Frequency and distribution of different layer types
      - 10 mm sliding window (xls and csv, 24 Sep. 2009)
      - 25 mm sliding window (xls and csv, 24 Sep. 2009)
      - 50 mm sliding window (xls and csv, 24 Sep. 2009)
      - 100 mm sliding window (xls and csv, 24 Sep. 2009)
  - Lamina visibility index (LVI)
    - Full dataset (xls and csv, 09 Aug. 2010)
    - Smoothed (50 cm average) (csv, 09 Aug. 2009)
  - Dust analysis
    - Dust flux and provenance data (xls and csv, 09 Jan. 2011)
  - In-situ colour measurement
    - In-situ colourimetric data (xls and csv, 06 Jun. 2007)
Meetings
- 18-19 April 2008, Newcastle: Venue, programme, presentation files, minutes, group photos
- 27-28 February 2009, Potsdam: Venue, programme, presentation files, minutes, group photos
- 23-24 September 2009, Aberystwyth: Venue, programme, presentation files, minutes, group photos
- 17-20 May 2010, Lake Suigetsu: Venue, programme, presentation files, minutes, group photos, shared photos
- 11-13 January 2011, Glasgow: Venues (1, 2), programme, presentation files, minutes, group photos
- 22-23 September 2011, Potsdam: Venue, programme, presentation files, minutes, group photos
- 01-02 March 2012, Newcastle: Venue, programme, presentation files, minutes, group photos
Miscellanea
- 2011 NERC consortium grant application (unsuccessful) (concept note, proposal, impact plan, review comments, response, presentation)
- 2006 coring campaign Shared photos
- Goodies: official project logo / wallpapers

Maintained by Kumiko Okumura, Hitoshi Yonenobu and Takeshi Nakagawa; Last updated: 15 Feb 2024 (revision history)