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Raine, J Ian (1998): Abundance of terrestrial palynomorphs of sediment core CRP-1. 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):
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 * 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):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DEPTH, sediment/rockDepthmGeocode
2Aequitriradites sp.Aequitriradites sp.#Raine, J IanCounting, palynology
3Baculatisporites sp.Baculatisporites sp.#Raine, J IanCounting, palynology
4CaryophyllaceaeCphae#Raine, J IanCounting, palynology
5Chenopodipollis sp.Chenopodipollis sp.#Raine, J IanCounting, palynology
6Coptospora sp.Coptospora sp.#Raine, J IanCounting, palynologyspecies a (granulate)
7Coptospora sp.Coptospora sp.#Raine, J IanCounting, palynologyspecies b (coarsely verrucate)
8Coptospora sp.Coptospora sp.#Raine, J IanCounting, palynologyspecies c (verrucate)
9Dacrydiumites praecupressinoidesD. praecupressinoide#Raine, J IanCounting, palynology
10Dilwynites granulatusD. granulatus#Raine, J IanCounting, palynology
11MarchantiaceaeMarchantiaceae#Raine, J IanCounting, palynology
12Microcachryidites cf. M. antarcticusM. cf. M. antarcticus#Raine, J IanCounting, palynology
13Nothofagidites asperusN. asperus#Raine, J IanCounting, palynology
14Nothofagidites spp.Nothofagidites spp.#Raine, J IanCounting, palynologyundiffertiated fusca type
15Nothofagidites cranwelliaeN. cranwelliae#Raine, J IanCounting, palynology
16Nothofagidites flemingiiN. flemingii#Raine, J IanCounting, palynology
17Nothofagidites cf. N. flemingiiN. cf. N. flemingii#Raine, J IanCounting, palynology
18Nothofagidites lachlaniaeN. lachlaniae#Raine, J IanCounting, palynology
19Phyllocladidites mawsoniiPh. mawsonii#Raine, J IanCounting, palynology
20Peninsulapollis sp.Peninsulapollis sp.#Raine, J IanCounting, palynologyquestionable
21Polypodiidites sp.Polypodiidites sp.#Raine, J IanCounting, palynology
22Podocarpidites spp.Podocarpidites spp.#Raine, J IanCounting, palynology
23ProteaceaeProteaceae#Raine, J IanCounting, palynology
24Trichotomosulcites subgranulatusT. subgranulatus#Raine, J IanCounting, palynology
25Tricolpites sp.Tricolpites sp.#Raine, J IanCounting, palynologyspecies a
26Triporopollenites cf. T. ambiguusT. cf. ambiguus#Raine, J IanCounting, palynology
27Triporopollenites sp.Triporopollenites sp.#Raine, J IanCounting, palynology
28Alisporites spp.Alisporites spp.#Raine, J IanCounting, palynology
29Antulsporites spp.Antulsporites spp.#Raine, J IanCounting, palynology
30Asseretospora sp.Asseretospora sp.#Raine, J IanCounting, palynologyquestionable
31cavate sporecavate spore#Raine, J IanCounting, palynology
32Deltoidospora directaD. directa#Raine, J IanCounting, palynology
33Equisetosporites sp.Equisetosporites sp.#Raine, J IanCounting, palynology
34Granulatisporites trisinusG. trisinus#Raine, J IanCounting, palynology
35Horriditriletes ramosusH. ramosus#Raine, J IanCounting, palynology
36Laevigatosporites sp.Laevigatosporites sp.#Raine, J IanCounting, palynology
37Protohaploxypinus sp.Protohaploxypinus sp.#Raine, J IanCounting, palynology
38Punctatisporites spp.Punctatisporites spp.#Raine, J IanCounting, palynology
39Rubinella sp.Rubinella sp.#Raine, J IanCounting, palynologyquestionable
40Rugulatisporites sp.Rugulatisporites sp.#Raine, J IanCounting, palynology
41Spores, apiculate indeterminateSpore apic indet#Raine, J IanCounting, palynology
42Pollen, bisaccatePollen bisaccate#Raine, J IanCounting, palynologyindeterminata
Size:
1968 data points

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