Westphal, Hildegard; Garuglieri, Elisa; Webb, Gregory E; Nothdurft, Luke; Merkel, Anna; Khanna, Pankaj; Karki, Poornima; Nohl, Theresa; Gischler, Eberhard; Webster, Jody M (2026): Scanning Electron Micrographs of biosignatures of microbial mats (IODP Expedition 389) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995587 (DOI registration in progress)
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2026-07-06
Abstract:
For the study of the Pleistocene reef microbialites from Hawaii, samples were examined under a scanning electron microscope (SEM) to identify microbial features allowing for biological identification. With SEM imaging of microbialite surfaces and vertical polished sections, we characterize the ultrastructure of the crusts and identify trapped and bound particles as well as any microbial remains that might allow identification of the microbes, e.g., filaments that are indicative of taxonomic determination. SEM analysis with a secondary electron (SE) detector was performed with a Teneo-VS SEM at the KAUST Imaging and Characterization Core Lab, and a Tescan Vega LMU at the ZMT Geosciences Laboratory.
Supplement to:
Westphal, Hildegard; Garuglieri, Elisa; Webb, Gregory E; Nothdurft, Luke; Merkel, Anna; Khanna, Pankaj; Karki, Poornima; Nohl, Theresa; Gischler, Eberhard; Webster, Jody M (preprint): Biosignatures of microbial mats in Pleistocene coral reef cores from IODP Expedition 389 (Hawaiian Drowned Reefs). Biogeosciences, https://doi.org/10.5194/egusphere-2026-1564
Coverage:
Median Latitude: 20.034097 * Median Longitude: -155.555962 * South-bound Latitude: 19.870311 * West-bound Longitude: -156.062877 * North-bound Latitude: 20.289871 * East-bound Longitude: -154.954000
Date/Time Start: 2023-09-10T00:00:00 * Date/Time End: 2023-10-16T00:00:00
Minimum Elevation: -415.9 m * Maximum Elevation: -347.0 m
Event(s):
389-M0097B (KAW-04Bb) * Latitude: 19.942109 * Longitude: -156.062877 * Date/Time Start: 2023-09-10T00:00:00 * Date/Time End: 2023-09-12T00:00:00 * Elevation: -414.6 m * Location: Hawaii, USA * Campaign: Exp389 (Hawaiian Drowned Reefs (HDR)) * Basis: MMA Valour * Method/Device: Benthic Portable Remotely Operated Drill (PROD5) * Comment: IGSN: IBCR0389EHI5101. Spatial reference system (SRS): 4626. Comment: LAT water depth: 414m. Washed to 34.36m. Maximum number of barrels used.
389-M0102C (KOH-01Ac) * Latitude: 20.289871 * Longitude: -155.651009 * Date/Time Start: 2023-10-08T00:00:00 * Date/Time End: 2023-10-11T00:00:00 * Elevation: -415.9 m * Location: Hawaii, USA * Campaign: Exp389 (Hawaiian Drowned Reefs (HDR)) * Basis: MMA Valour * Method/Device: Benthic Portable Remotely Operated Drill (PROD5) * Comment: IGSN: IBCR0389EHZ5101. Spatial reference system (SRS): 4326. Comment: LAT water depth: 415.5 m. Wash to 19.9m. Maximum number of barrels used.
389-M0104A (HIL-04Aa) * Latitude: 19.870311 * Longitude: -154.954000 * Date/Time Start: 2023-10-14T00:00:00 * Date/Time End: 2023-10-16T00:00:00 * Elevation: -347.0 m * Location: Hawaii, USA * Campaign: Exp389 (Hawaiian Drowned Reefs (HDR)) * Basis: MMA Valour * Method/Device: Benthic Portable Remotely Operated Drill (PROD5) * Comment: IGSN: IBCR0389EH16101. Spatial reference system (SRS): 4326. Comment: LAT water depth: 346.6m. Borehole terminated as per client request.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Westphal, Hildegard | |||
| 2 | Sample code/label | Sample label | Westphal, Hildegard | DSDP/ODP/IODP sample designation | ||
| 3 | Half | Half | Westphal, Hildegard | Core half | ||
| 4 | Description | Description | Westphal, Hildegard | |||
| 5 | Image | IMAGE | Westphal, Hildegard |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
156 data points