Grobe, Hannes; Willkomm, Horst; Wefer, Gerold (1985): Radiocarbon age determinations of coral and reef cores from the Philippines off North Bohol and Olango [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.55293, Supplement to: Grobe, H et al. (1985): Internal structure and origin of the Double Reefs of North Bohol and the Olango Reef Flat (Philippines). The Philippine Scientist, 22, 83-94, hdl:10013/epic.11655.d001
Always quote citation above when using data! You can download the citation in several formats below.
Published: 1985 (exact date unknown) • DOI registered: 2005-04-08
Abstract:
Nine holes were drilled with a submersible hydraulic drill into the slopes and reef flats of the Caubyan and Calituban reefs as well as of Olango Flat. The maximum depth of core penetration was 11 m. 14C ages showed that the Caubyan and Calituban reefs were formed within the last 6,000 years. Corals settled on a pre-existing relief parallel to the island of Bohol, building a framework for other carbonate-producing organisms. The reef flat south of Olango has a different structure. Formation took place during a Pleistocene high sea level, e.g. 125,000 years ago.
Further details:
Grobe, Hannes (1985): Block diagramm of the reef belts between Cebu/Mactan and Olango/Bohole islands, Philippines. In: Grobe, Hannes; Willkomm, Horst; Wefer, Gerold (eds.): Internal structure and origin of the Double Reefs of North Bohol and the Olango Reef Flat (Philippines). Philippine Scientist, 22, 83-94, https://commons.wikimedia.org/wiki/File:Philippine-reef-block_hg.png
Project(s):
Coverage:
Median Latitude: 10.227313 * Median Longitude: 124.083875 * South-bound Latitude: 10.211700 * West-bound Longitude: 123.994000 * North-bound Latitude: 10.252000 * East-bound Longitude: 124.150000
Minimum DEPTH, sediment/rock: 0.75 m * Maximum DEPTH, sediment/rock: 10.90 m
Event(s):
Calituban_XX * Latitude: 10.220700 * Longitude: 124.141000 * Elevation: -1.0 m * Location: Sulu Sea * Campaign: Philippines80 * Basis: Marine Research Station * Method/Device: Drill, hydraulic (DRILLHY)
Calituban_XXI * Latitude: 10.216600 * Longitude: 124.145000 * Elevation: -1.0 m * Location: Sulu Sea * Campaign: Philippines80 * Basis: Marine Research Station * Method/Device: Drill, hydraulic (DRILLHY)
Calituban_XXII * Latitude: 10.211700 * Longitude: 124.150000 * Elevation: -1.0 m * Location: Sulu Sea * Campaign: Philippines80 * Basis: Marine Research Station * Method/Device: Drill, hydraulic (DRILLHY)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 5 | Depth, top/min | Depth top | m | Grobe, Hannes | ||
| 6 | Depth, bottom/max | Depth bot | m | Grobe, Hannes | ||
| 7 | Age, dated | Age dated | ka | Grobe, Hannes | Age, 14C conventional | |
| 8 | Age, dated | Age dated | ka | Grobe, Hannes | Age, 14C milieu/reservoir corrected | |
| 9 | Age, dated standard deviation | Age dated std dev | ± | Grobe, Hannes | Age, 14C conventional | |
| 10 | δ13C, carbonate | δ13C carb | ‰ PDB | Grobe, Hannes | Age, 14C conventional | |
| 11 | Sample code/label | Sample label | Grobe, Hannes |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
206 data points