Data · collection
Velocity logging of the CIROS-1 drillhole and determination of the geological structure in the immediate vicinity of the CIROS-1 drillhole using seismic reflection techniques (marine airgun sound source)
Listed in NASA Earthdata CMR
Measurement of the downhole velocity of the CIROS-1 drillhole after the completion of drilling by lowering a hydrophone down the drillhole was unsuccessful due to equipment failure.
Description
Determination of the dip, faults and strong reflectors in the geologic structure in the immediate vicinity of the CIROS-1 drillhole was conducted using seismic reflection techniques. Testing of various seismic reflection techniques was also conducted for any future reflection projects on the sea-ice.
It is important to link the geological structure determined by drilling with the horizons detected in other seismic surveys in the western Ross Sea, in order to date these horizons and their deformation. The reflection survey would also possible reveal some of the deformation history in the vicinity of the drillhole as well as the possible presence of reflecting strata at depths greater than reached by the drilling project.
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Two seismic lines were shot running at right angles from the CIROS-1 drillhole and records appear to have primary reflected energy down at least to 800m sub-seafloor. The aim was to determine the geological structure in the CIROS-1 immediate vicinity and to evaluate marine airgun sound sources as an alternative to explosive operation.
Links
Documentation and papers
- victoria.ac.nz /antarctic ↗
The Victoria University of Wellington Antarctic Research Centre homepage. All publications and data will be available through this group.
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214592079-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214592079-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Boreholes · FIELD INVESTIGATION · FIELD SURVEYS · HYDROPHONES · LABORATORY · Not provided · Sediments · SEISMIC REFLECTION PROFILERS · Stratigraphic Sequence · Tectonic Landforms
Provenance · 1 source records, 16 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214592079-SCIOPS | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:hydrophones | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:seismic-reflection-profilers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ocean-lake-records/boreholes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ocean-lake-records/sediments | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ocean-lake-records/stratigraphic-sequence | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geomorphic-landforms-processes/tectonic-landforms | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:field-investigation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:field-surveys | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:laboratory | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |