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Lavelle, Mark (2001): (Table 1) Strontium isotope data for marine carbonates of sediment core CRP-3. PANGAEA, https://doi.org/10.1594/PANGAEA.184981, Supplement to: Lavelle, M (2001): Strontium isotope stratigraphy for CRP-3, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 593-598, hdl:10013/epic.28217.d001

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Abstract:
Strontium isotope stratigraphy was used to date 5 discrete horizons within the CRP-3 drillhole. A single in situ modiolid bivalve fragment at 10.88 mbsf gives an age of 30.9 (±0.8) Ma for the associated sediment. The four remaining well preserved fragments recovered from 29.94-190.31 mbsf are within error of this age, indicating a high sedimentation rate and suggesting little time is missing in disconformities. The diagenetic alteration of carbonate macrofossils by continental fluids (and possibly seawater) is a common feature to 320 mbsf.
Project(s):
Coverage:
Latitude: -77.006000 * Longitude: 163.719000
Date/Time Start: 1999-10-09T00:00:00 * Date/Time End: 1999-11-19T00:00:00
Minimum Elevation: -295.0 m * Maximum Elevation: -295.0 m
Event(s):
CRP-3 * Latitude: -77.006000 * Longitude: 163.719000 * Date/Time Start: 1999-10-09T00:00:00 * Date/Time End: 1999-11-19T00:00:00 * Elevation: -295.0 m * Penetration: 939 m * Recovery: 936 m * Location: Ross Sea * Campaign: CRP-3 * Basis: Sampling/drilling from ice * Device: Core wireline system (CWS) * Comment: 11.76 km at 76° true from Cape Roberts, 2.04 km at 225° true from CRP-2. Fast ice thickness: 2.0 to 2.2 m. Sea rise embedded to 9.55 mbsf. Lateral ice movement from spudding 5.0 m to 82° true. HQ core to 345.85 mbsf. NQ core to 939.42 mbsf. Core recovery 97%. Phase 1 logging to 345 mbsf, Phase 2 logging to 773 mbsf, Phase 3 logging to 918 mbsf. Deepest Cenozoic lithology and depth: sandstone breccia from 822.87 to 823.11 mbsf. Age of oldest Cenozoic strata: earliest Oligocene or latest Eocene. Deepest core lithology and depth: light red-brown quartz-cemented quartz sandstone to 939.42 mbsf. Age of bedrock: (mid?) Devonian.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Depth, top/minDepth topmLavelle, Mark
2Depth, bottom/maxDepth botmLavelle, Mark
3Lithologic unit/sequenceUnitLavelle, Mark
4Sample typeSamp typeLavelle, Mark
5Shell debrisShellsLavelle, MarkShell type
6PreservationPreservLavelle, Mark
7CommentCommentLavelle, MarkTaphonomy
8Strontium 87/Strontium 8687Sr/86SrLavelle, MarkIsotope ratio mass spectrometryNormalised to long-term laboratory standard NIST-987 = 0.7210248
9Strontium 87/Strontium 86, error87Sr/86Sr e±Lavelle, Mark2SE
10Age, datedAge datedkaLavelle, MarkAge, strontium isotope, LOWESS fit Howarth & McArthur (1997)
11Age, dated, range, minimumAge dated minkaLavelle, MarkAge, strontium isotope, LOWESS fit Howarth & McArthur (1997)
12Age, dated, range, maximumAge dated maxkaLavelle, MarkAge, strontium isotope, LOWESS fit Howarth & McArthur (1997)
Size:
150 data points

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