Raine, J Ian (1998): Abundance of terrestrial palynomorphs of sediment core CRP-1 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.54784, Supplement to: Raine, JI (1998): Terrestrial palynomorphs from Cape Roberts Project drillhole CRP-1, Ross Sea, Antarctica. Terra Antartica, 5(3), 539-548, hdl:10013/epic.28312.d001
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Abstract:
Sparse pollen and spores from the lower Miocene section of CRP-1 derive from at least three sources. A low-diversity but persitent angiosperm-moss-liverwort assemblage may reflect contemporaneous herb-moss tundra and a climate with summer temperatures similar to that of islands in the vicinity of the Antarctic Convergence today. More diverse Nothofagus-podocarp-Proteaceae assemblages at c. 70 mbsf and 100- 116 mbsf may rcflect woody vegetation growing nearby in warmer sites or periods, long distance transport, or redeposition from older strata. A contemporaneous local origin is preferred: although it is not possible to determine the precise form of this vegetation from palynological data, a conservative model with low-growing shrubs would imply July mean temperatures of at least 7°C. Reworked Permian-Triassic miospores are present in low numbers throughout the sequence. Pleistocene samples contain assemblages likely to have been reworked from older strata, mostly having similar taxa to the lower Miocene section, although one sample contains a Nothofagus-dominated pollen assemblage (also interpreted as reworked) similar to that of the Sirius Group of the Transantarctic Mountains
Project(s):
Cape Roberts Project (CRP)
Coverage:
Latitude: -77.007580 * Longitude: 163.755080
Date/Time Start: 1997-10-17T01:30:00 * Date/Time End: 1997-10-24T02:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 147.68 m
Event(s):
CRP-1 (16 km ENE Cape Roberts) * Latitude: -77.007580 * Longitude: 163.755080 * Date/Time Start: 1997-10-17T01:30:00 * Date/Time End: 1997-10-24T02:00:00 * Elevation: -153.5 m * Penetration: 132.06 m * Recovery: 113.32 m * Location: off Cape Roberts, Ross Sea, Antarctica * Campaign: CRP-1 * Basis: Sampling/drilling ice * Method/Device: Core wireline system (CWS) * Comment: sea ice thickness: 1.60 m, recovery 86 %. Age and lithology of oldest strata: 22-24 Ma; mudstone with scattered pebbles.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
2 | Aequitriradites sp. | Aequitriradites sp. | # | Raine, J Ian | Counting, palynology | |
3 | Baculatisporites sp. | Baculatisporites sp. | # | Raine, J Ian | Counting, palynology | |
4 | Caryophyllaceae | Cphae | # | Raine, J Ian | Counting, palynology | |
5 | Chenopodipollis sp. | Chenopodipollis sp. | # | Raine, J Ian | Counting, palynology | |
6 | Coptospora sp. | Coptospora sp. | # | Raine, J Ian | Counting, palynology | species a (granulate) |
7 | Coptospora sp. | Coptospora sp. | # | Raine, J Ian | Counting, palynology | species b (coarsely verrucate) |
8 | Coptospora sp. | Coptospora sp. | # | Raine, J Ian | Counting, palynology | species c (verrucate) |
9 | Dacrydiumites praecupressinoides | D. praecupressinoide | # | Raine, J Ian | Counting, palynology | |
10 | Dilwynites granulatus | D. granulatus | # | Raine, J Ian | Counting, palynology | |
11 | Marchantiaceae | Marchantiaceae | # | Raine, J Ian | Counting, palynology | |
12 | Microcachryidites cf. antarcticus | M. cf. antarcticus | # | Raine, J Ian | Counting, palynology | |
13 | Nothofagidites asperus | N. asperus | # | Raine, J Ian | Counting, palynology | |
14 | Nothofagidites spp. | Nothofagidites spp. | # | Raine, J Ian | Counting, palynology | undiffertiated fusca type |
15 | Nothofagidites cranwelliae | N. cranwelliae | # | Raine, J Ian | Counting, palynology | |
16 | Nothofagidites flemingii | N. flemingii | # | Raine, J Ian | Counting, palynology | |
17 | Nothofagidites cf. flemingii | N. cf. flemingii | # | Raine, J Ian | Counting, palynology | |
18 | Nothofagidites lachlaniae | N. lachlaniae | # | Raine, J Ian | Counting, palynology | |
19 | Phyllocladidites mawsonii | Ph. mawsonii | # | Raine, J Ian | Counting, palynology | |
20 | Peninsulapollis sp. | Peninsulapollis sp. | # | Raine, J Ian | Counting, palynology | questionable |
21 | Polypodiidites sp. | Polypodiidites sp. | # | Raine, J Ian | Counting, palynology | |
22 | Podocarpidites spp. | Podocarpidites spp. | # | Raine, J Ian | Counting, palynology | |
23 | Proteaceae | Proteaceae | # | Raine, J Ian | Counting, palynology | |
24 | Trichotomosulcites subgranulatus | T. subgranulatus | # | Raine, J Ian | Counting, palynology | |
25 | Tricolpites sp. | Tricolpites sp. | # | Raine, J Ian | Counting, palynology | species a |
26 | Triporopollenites cf. ambiguus | T. cf. ambiguus | # | Raine, J Ian | Counting, palynology | |
27 | Triporopollenites sp. | Triporopollenites sp. | # | Raine, J Ian | Counting, palynology | |
28 | Alisporites spp. | Alisporites spp. | # | Raine, J Ian | Counting, palynology | |
29 | Antulsporites spp. | Antulsporites spp. | # | Raine, J Ian | Counting, palynology | |
30 | Asseretospora sp. | Asseretospora sp. | # | Raine, J Ian | Counting, palynology | questionable |
31 | cavate spore | cavate spore | # | Raine, J Ian | Counting, palynology | |
32 | Deltoidospora directa | D. directa | # | Raine, J Ian | Counting, palynology | |
33 | Equisetosporites sp. | Equisetosporites sp. | # | Raine, J Ian | Counting, palynology | |
34 | Granulatisporites trisinus | G. trisinus | # | Raine, J Ian | Counting, palynology | |
35 | Horriditriletes ramosus | H. ramosus | # | Raine, J Ian | Counting, palynology | |
36 | Laevigatosporites sp. | Laevigatosporites sp. | # | Raine, J Ian | Counting, palynology | |
37 | Protohaploxypinus sp. | Protohaploxypinus sp. | # | Raine, J Ian | Counting, palynology | |
38 | Punctatisporites spp. | Punctatisporites spp. | # | Raine, J Ian | Counting, palynology | |
39 | Rubinella sp. | Rubinella sp. | # | Raine, J Ian | Counting, palynology | questionable |
40 | Rugulatisporites sp. | Rugulatisporites sp. | # | Raine, J Ian | Counting, palynology | |
41 | Spores, apiculate indeterminate | Spore apic indet | # | Raine, J Ian | Counting, palynology | |
42 | Pollen, bisaccate | Pollen bisaccate | # | Raine, J Ian | Counting, palynology | indeterminata |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1968 data points