McDougall, Ian; van der Lingen, Gerrit J (1974): (Table 3) K-Ar ages on sanidine concentrates from rhyolites of DSDP Hole 21-207A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.708428, In supplement to: McDougall, I; van der Lingen, GJ (1974): Age of the Rhyolites of the Lord Howe Rise and the evolution of the Southwest Pacific Ocean. Earth and Planetary Science Letters, 21(2), 117-126, https://doi.org/10.1016/0012-821X(74)90044-2
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Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: -36.962500 * Longitude: 165.434300
Date/Time Start: 1971-12-12T00:00:00 * Date/Time End: 1971-12-12T00:00:00
Minimum DEPTH, sediment/rock: 360 m * Maximum DEPTH, sediment/rock: 405 m
Event(s):
21-207A * Latitude: -36.962500 * Longitude: 165.434300 * Date/Time: 1971-12-12T00:00:00 * Elevation: -1389.0 m * Penetration: 513 m * Recovery: 212.3 m * Location: South Pacific/Tasman Sea/CONT RISE * Campaign: Leg21 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 45 cores; 405 m cored; 45 m drilled; 52.4 % recovery
Comment:
Lamda epsilon = 0.585 * 10**-10/ yr. Lambda beta = 4.72 * 10**-10/yr. 40K/K = 1.19 * 10**-2 atom %.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Sample code/label | Sample label | McDougall, Ian | DSDP/ODP/IODP sample designation | ||
| 3 | Sample code/label 2 | Sample label 2 | McDougall, Ian | |||
| 4 | Sample comment | Sample comment | McDougall, Ian | |||
| 5 | Potassium | K | % | McDougall, Ian | ||
| 6 | Potassium | K | % | McDougall, Ian | ||
| 7 | - | - | McDougall, Ian | Rad 40Ar (10**-5 ccm NTP/g) | ||
| 8 | Ratio | Ratio | McDougall, Ian | (100rad 49Ar)/(total 40Ar) | ||
| 9 | Age, dated | Age dated | ka | McDougall, Ian | Age, 40Ar/39Ar Argon-Argon | |
| 10 | Age, dated standard deviation | Age dated std dev | ± | McDougall, Ian | Age, 40Ar/39Ar Argon-Argon |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
44 data points
Data
| 1 Depth sed [m] | 2 Sample label (DSDP/ODP/IODP sample designation) | 3 Sample label 2 | 4 Sample comment | 5 K [%] | 6 K [%] | 7 - (Rad 40Ar (10**-5 ccm NTP/g)) | 8 Ratio ((100rad 49Ar)/(total 40Ar)) | 9 Age dated [ka] (Age, 40Ar/39Ar Argon-Argon) | 10 Age dated std dev [±] (Age, 40Ar/39Ar Argon-Argon) |
|---|---|---|---|---|---|---|---|---|---|
| 360 | 21-207A-34-CC | 72-853 | 6.70 | 6.74 | 2.607 | 98.0 | 94800 | 1300 | |
| 372 | 21-207A-35-3,30-90 | 73-3 | 7.41 | 7.47 | 2.855 | 96.6 | 93800 | 700 | |
| 372 | 21-207A-35-3,30-90 | Massive, dark rhyolithe | 2.844 | 97.6 | 93400 | 700 | |||
| 372 | 21-207A-35-3,30-90 | 73-4 | 7.41 | 7.11 | 2.753 | 98.3 | 94700 | 600 | |
| 372 | 21-207A-35-3,30-90 | Fluidal, fragmental rhyolithe | 7.737 | 98.9 | 94100 | 600 | |||
| 405 | 21-207A-39-CC | 72-854 | 6.56 | 6.69 | 2.497 | 95.6 | 94200 | 1900 |