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Raine, J Ian; Askin, R A (2001): (Table 1) Stratigraphical distribution of Cenozoic terrestrial palynomorphs from sediment core CRP-3 [dataset]. PANGAEA,, Supplement to: Raine, JI; Askin, RA (2001): Terrestrial palynology of Cape Roberts Project drillhole CRP-3, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 389-400, hdl:10013/epic.28233.d001

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Sparse low diversity early Oligocene spore-pollen assemblages above c. 410 mbsf (meters blow sea floor) in CRP-3 are dominated by Nothofagus pollen, and are very similar in composition to those from the lower part of CRP-2A. Anther-derived pollen aggregates, and a Nothofagus leaf at 44.12 mbsf show that the palynomorphs were derived from vegetation growing at the time of deposition. This woody vegetation included several species of Nothofagus and podocarpaceous conifers, a few other angiosperm families, and few cryptogams except for bryophytes, In favourable sites the vegetation may have comprised a low scrub or closed forest intermediate stature and floristic richness between that of the Eocene and the limited vegetation of the late Oligocene to earl Miocene. It may have similar to Nothofagus woodland of the present-day Magellanic region, with summer mean daily temperatures at sea level of c. 10-12° C. More stunted vegetation would have existed in exposed and upland sites. Wetland vegetation appears to have been minor, although Coptospora may in part represent a mire community.
Below c. 410 mbsf samples are mostly barren, probably due to non-deposition of fine particles and dilution by high sediment deposition. A meagre but relatively high diversity assemblage at 781.36 mbsf contains Casuarina-type pollen, unknown in the higher CRP sequence in Eocene strata of CIROS-1 and glacial erratics of the McMurdo Sound region. This limited data is consistent with Eocene dating of basal CRP-3 Cenozoic sediments from magnetostratigraphy.
Latitude: -77.006000 * Longitude: 163.719000
Date/Time Start: 1999-10-09T00:00:00 * Date/Time End: 1999-11-19T00:00:00
Minimum DEPTH, sediment/rock: 7.730 m * Maximum DEPTH, sediment/rock: 798.035 m
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 * Method/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.
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmGeocode
2Depth, top/minDepth topmRaine, J Ian
3Depth, bottom/maxDepth botmRaine, J Ian
4AsteraceaeAstae#Raine, J IanCounting, palynologyTubuliforae
5CampanulaceaeCamae#Raine, J IanCounting, palynologyquestionable
6CaryophyllaceaeCphae#Raine, J IanCounting, palynologyStellaria type
7CaryophyllaceaeCphae#Raine, J IanCounting, palynologyquestionable
8Chenopodipollis sp.Chenopodipollis sp.#Raine, J IanCounting, palynology
9Cophosfora spp.Cophosfora spp.#Raine, J IanCounting, palynology
10Cyathidites minorCyathidites minor#Raine, J IanCounting, palynology
11Cyperaceaepollis sp.Cyperaceaepollis sp.#Raine, J IanCounting, palynologyquestionable
12Dilwynites granulatusD. granulatus#Raine, J IanCounting, palynology
13Laevigatosporites spp.Laevigatosporites spp.#Raine, J IanCounting, palynology
14Lycopodiumsporites sp.Lycopodiumsporites s#Raine, J IanCounting, palynology
15Microcachrydites antarcticusM. antarcticus#Raine, J IanCounting, palynology
16Myricipites harrisiiM. harrisii#Raine, J IanCounting, palynology
17Myrtaceidites sp.Myrtaceidites sp.#Raine, J IanCounting, palynologyquestionable
18Nothofagidites asperusN. asperus#Raine, J IanCounting, palynology
19Nothofagidites flemingiiN. flemingii#Raine, J IanCounting, palynology
20Nothofagidites cf. flemingiiN. cf. flemingii#Raine, J IanCounting, palynology
21Nothofagidites lachlaniaeN. lachlaniae#Raine, J IanCounting, palynology
22Nothofagidites spp.Nothofagidites spp.#Raine, J IanCounting, palynologyfusca group
23AggregatesAggRaine, J IanCounting, palynologyNothofagidites aggregates
24Podcarpidites cf. exiguusP. cf. exiguus#Raine, J IanCounting, palynology
25Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. a
26Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. b
27Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. c
28Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. d
29Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. e
30Podcarpidites spp.Podcarpidites spp.#Raine, J IanCounting, palynology
31Proteacidites sp.Proteacidites sp.#Raine, J IanCounting, palynology
32RanunculaceaeRanae#Raine, J IanCounting, palynology
33Rugulatisporites sp.Rugulatisporites sp.#Raine, J IanCounting, palynology
34StylidiaceaeStylidiaceae#Raine, J IanCounting, palynologyquestionable
35Trichotomosulcites subgranulatusT. subgranulatus#Raine, J IanCounting, palynology
36Trichotomosulcites sp.Trichotomosulcites sp.#Raine, J IanCounting, palynology
37Tricolpites sp.Tricolpites sp.#Raine, J IanCounting, palynologyvar. b
38Tricolpites sp.Tricolpites sp.#Raine, J IanCounting, palynologyvar. d
39Tricolpites sp.Tricolpites sp.#Raine, J IanCounting, palynologyvar. f
40Tricolpites spp.Tricolpites spp.#Raine, J IanCounting, palynology
41Triporopollenites sp.Triporopollenites sp.#Raine, J IanCounting, palynology
42Pollen, angiosperm indeterminataPollen angiosperm indet#Raine, J IanCounting, palynology
43Spores indeterminataSpo.indet#Raine, J IanCounting, palynology
44Peninsulapollis cf. gilliiP. cf. gillii#Raine, J IanCounting, palynologyrecycled
45Tricolporites cf. PaenestriatusT. cf. Paenestriatus#Raine, J IanCounting, palynologyrecycled
46Fungal myceliaFung myc#Raine, J IanCounting, palynologyMicrothyriaceae
47Fungal spore indeterminataFun.s.indet#Raine, J IanCounting, palynology
48Specimen countSp count#Raine, J IanCounting, palynology
3868 data points

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