Kohnen, Math E L; Peakman, T M; Sinninghe Damsté, Jaap S; de Leeuw, Jan W (1990): Total organic carbon, lithology and alkylthiophenes in immature sediments (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.763284, Supplement to: Kohnen, MEL et al. (1990): Identification and occurrence of novel C36-C54 3,4-dialkylthiophenes with an unusual carbon skeleton in immature sediments. Organic Geochemistry, 16(4-6), 1103-1113, https://doi.org/10.1016/0146-6380(90)90146-Q
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Abstract:
A series of novel long-chain 3,4-dialkylthiophenes (C36–C54) was identified in a number of sediments ranging from Pleistocene to Cretaceous. The identifications were based on mass spectral characterisation, desulphurisation and mass spectral data of synthesised model compounds. These organic sulphur compounds are probably formed by sulphur incorporation into mid-chain dimethylalkadienes with two methylenic double bonds. These putative precursor lipids are unprecedented and may be considered rather unusual. The distribution of 3,4-dialkylthiophenes in sediments varies considerably with the depositional palaeoenvironment, indicating that these compounds have a potential as molecular markers reflecting changes in palaeoenvironment.
Project(s):
Deep Sea Drilling Project (DSDP)
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 19.887500 * Median Longitude: -25.730516 * South-bound Latitude: -19.743500 * West-bound Longitude: -120.757800 * North-bound Latitude: 44.200000 * East-bound Longitude: 57.608100
Date/Time Start: 1978-10-10T00:00:00 * Date/Time End: 1987-09-19T14:15:00
Minimum POINT DISTANCE from start: 59.5 m * Maximum POINT DISTANCE from start: 165.5 m
Event(s):
63-467 * Latitude: 33.849500 * Longitude: -120.757800 * Date/Time: 1978-10-10T00:00:00 * Elevation: -2128.0 m * Penetration: 1041.5 m * Recovery: 399.1 m * Location: North Pacific/GAP * Campaign: Leg63 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 100 cores; 946.5 m cored; 38 m drilled; 42.2 % recovery
64-481A * Latitude: 27.253000 * Longitude: -111.507700 * Date/Time: 1979-01-03T00:00:00 * Elevation: -1998.0 m * Penetration: 374.5 m * Recovery: 159 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 31 cores; 293.5 m cored; 39 m drilled; 54.2 % recovery
75-532 * Latitude: -19.743500 * Longitude: 10.518800 * Date/Time: 1980-08-20T00:00:00 * Elevation: -1331.0 m * Penetration: 250.8 m * Recovery: 232 m * Location: South Atlantic * Campaign: Leg75 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 59 cores; 242.8 m cored; 8 m drilled; 95.6 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Kohnen, Math E L | DSDP/ODP/IODP sample designation | ||
| 3 | POINT DISTANCE from start | Dist | m | Geocode | ||
| 4 | Epoch | Epoch | Kohnen, Math E L | |||
| 5 | Lithology/composition/facies | Lithology | Kohnen, Math E L | |||
| 6 | Carbon, organic, total | TOC | % | Kohnen, Math E L | ||
| 7 | Description | Description | Kohnen, Math E L | carbon number range of 3,4-dialkylthiosphenes | ||
| 8 | Alkylthiophenes | Alkylthiophenes | Kohnen, Math E L | + = present, ++ = minor, +++ = abundant, ++++ = very abundant |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
67 data points
Data
| 1 Event | 2 Sample label | 3 Dist [m] | 4 Epoch | 5 Lithology | 6 TOC [%] | 7 Description | 8 Alkylthiophenes |
|---|---|---|---|---|---|---|---|
| 64-481A | 64-481A-10-2,110-125 | late Pleistocene | diatomaceous mud | 5.76 | C36-C48 | ++ | |
| 117-723B | 117-723B-41X-2,5-53 | Pliocene | nannofossil ooz | 8.24 | C36-C52 | +++ | |
| 112-684C | 112-684C-4H-3,30-37 | Pliocene | silty diatomaceous mus | 7.46 | C44-C46 | + | |
| 112-684C | 112-684C-4H-7,30-37 | Pliocene | diatomaceous mud | 4.09 | C44 | + | |
| 75-532 | 75-532-37-2,110-120 | early Pliocene | nannofossil/foram ooze | 1.92 | C44-C48 | + | |
| 63-467 | 63-467-54-2,110-115 | late Miocene | silty claystone | 4.37 | C36-C44 | ++ | |
| Vena_del_Gesso | Miocene | bituminous shale | 1.57 | C36-C46 | +++ | ||
| Jurf_ed_Darawish | 59.5 | upper Cretaceous | bituminous limestone | 6.89 | C40-C52 | ++++ | |
| Jurf_ed_Darawish | 100.5 | upper Cretaceous | bituminous limestone | 7.06 | C40-C52 | +++ | |
| Jurf_ed_Darawish | 137.5 | upper Cretaceous | bituminous calcareous marl | 9.73 | C40-C52 | ++ | |
| Jurf_ed_Darawish | 165.5 | upper Cretaceous | phosphorite | 8.29 | C40-C52 | + | |
| 79-547A | 79-547A-20-3,60-75 | Cretaceous slump (?) | clayey nannofossil chalk | 3.96 | C44-C54 | ++ |