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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, https://doi.org/10.1594/PANGAEA.183928, 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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Abstract:
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.
Project(s):
Coverage:
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
Event(s):
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.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DEPTH, sediment/rockDepth sedmGeocode
Depth, top/minDepth topmRaine, J Ian
Depth, bottom/maxDepth botmRaine, J Ian
AsteraceaeAstae#Raine, J IanCounting, palynologyTubuliforae
CampanulaceaeCamae#Raine, J IanCounting, palynologyquestionable
CaryophyllaceaeCphae#Raine, J IanCounting, palynologyStellaria type
CaryophyllaceaeCphae#Raine, J IanCounting, palynologyquestionable
Chenopodipollis sp.Chenopodipollis sp.#Raine, J IanCounting, palynology
Cophosfora spp.Cophosfora spp.#Raine, J IanCounting, palynology
10 Cyathidites minorCyathidites minor#Raine, J IanCounting, palynology
11 Cyperaceaepollis sp.Cyperaceaepollis sp.#Raine, J IanCounting, palynologyquestionable
12 Dilwynites granulatusD. granulatus#Raine, J IanCounting, palynology
13 Laevigatosporites spp.Laevigatosporites spp.#Raine, J IanCounting, palynology
14 Lycopodiumsporites sp.Lycopodiumsporites s#Raine, J IanCounting, palynology
15 Microcachrydites antarcticusM. antarcticus#Raine, J IanCounting, palynology
16 Myricipites harrisiiM. harrisii#Raine, J IanCounting, palynology
17 Myrtaceidites sp.Myrtaceidites sp.#Raine, J IanCounting, palynologyquestionable
18 Nothofagidites asperusN. asperus#Raine, J IanCounting, palynology
19 Nothofagidites flemingiiN. flemingii#Raine, J IanCounting, palynology
20 Nothofagidites cf. flemingiiN. cf. flemingii#Raine, J IanCounting, palynology
21 Nothofagidites lachlaniaeN. lachlaniae#Raine, J IanCounting, palynology
22 Nothofagidites spp.Nothofagidites spp.#Raine, J IanCounting, palynologyfusca group
23 AggregatesAggRaine, J IanCounting, palynologyNothofagidites aggregates
24 Podcarpidites cf. exiguusP. cf. exiguus#Raine, J IanCounting, palynology
25 Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. a
26 Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. b
27 Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. c
28 Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. d
29 Podcarpidites sp.Podcarpidites sp.#Raine, J IanCounting, palynologyvar. e
30 Podcarpidites spp.Podcarpidites spp.#Raine, J IanCounting, palynology
31 Proteacidites sp.Proteacidites sp.#Raine, J IanCounting, palynology
32 RanunculaceaeRanae#Raine, J IanCounting, palynology
33 Rugulatisporites sp.Rugulatisporites sp.#Raine, J IanCounting, palynology
34 StylidiaceaeStylidiaceae#Raine, J IanCounting, palynologyquestionable
35 Trichotomosulcites subgranulatusT. subgranulatus#Raine, J IanCounting, palynology
36 Trichotomosulcites sp.Trichotomosulcites sp.#Raine, J IanCounting, palynology
37 Tricolpites sp.Tricolpites sp.#Raine, J IanCounting, palynologyvar. b
38 Tricolpites sp.Tricolpites sp.#Raine, J IanCounting, palynologyvar. d
39 Tricolpites sp.Tricolpites sp.#Raine, J IanCounting, palynologyvar. f
40 Tricolpites spp.Tricolpites spp.#Raine, J IanCounting, palynology
41 Triporopollenites sp.Triporopollenites sp.#Raine, J IanCounting, palynology
42 Pollen, angiosperm indeterminataPollen angiosperm indet#Raine, J IanCounting, palynology
43 Spores indeterminataSpo.indet#Raine, J IanCounting, palynology
44 Peninsulapollis cf. gilliiP. cf. gillii#Raine, J IanCounting, palynologyrecycled
45 Tricolporites cf. PaenestriatusT. cf. Paenestriatus#Raine, J IanCounting, palynologyrecycled
46 Fungal myceliaFung myc#Raine, J IanCounting, palynologyMicrothyriaceae
47 Fungal spore indeterminataFun.s.indet#Raine, J IanCounting, palynology
48 Specimen countSp count#Raine, J IanCounting, palynology
Size:
3868 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Depth sed [m]

Depth top [m]

Depth bot [m]

Astae [#]
(Tubuliforae)

Camae [#]
(questionable)

Cphae [#]
(Stellaria type)

Cphae [#]
(questionable)

Chenopodipollis sp. [#]

Cophosfora spp. [#]
10 
Cyathidites minor [#]
11 
Cyperaceaepollis sp. [#]
(questionable)
12 
D. granulatus [#]
13 
Laevigatosporites spp. [#]
14 
Lycopodiumsporites s [#]
15 
M. antarcticus [#]
16 
M. harrisii [#]
17 
Myrtaceidites sp. [#]
(questionable)
18 
N. asperus [#]
19 
N. flemingii [#]
20 
N. cf. flemingii [#]
21 
N. lachlaniae [#]
22 
Nothofagidites spp. [#]
(fusca group)
23 
Agg
(Nothofagidites aggregates)
24 
P. cf. exiguus [#]
25 
Podcarpidites sp. [#]
(var. a)
26 
Podcarpidites sp. [#]
(var. b)
27 
Podcarpidites sp. [#]
(var. c)
28 
Podcarpidites sp. [#]
(var. d)
29 
Podcarpidites sp. [#]
(var. e)
30 
Podcarpidites spp. [#]
31 
Proteacidites sp. [#]
32 
Ranae [#]
33 
Rugulatisporites sp. [#]
34 
Stylidiaceae [#]
(questionable)
35 
T. subgranulatus [#]
36 
Trichotomosulcites sp. [#]
37 
Tricolpites sp. [#]
(var. b)
38 
Tricolpites sp. [#]
(var. d)
39 
Tricolpites sp. [#]
(var. f)
40 
Tricolpites spp. [#]
41 
Triporopollenites sp. [#]
42 
Pollen angiosperm indet [#]
43 
Spo.indet [#]
44 
P. cf. gillii [#]
(recycled)
45 
T. cf. Paenestriatus [#]
(recycled)
46 
Fung myc [#]
(Microthyriaceae)
47 
Fun.s.indet [#]
48 
Sp count [#]
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221.190221.18221.2000000000000000010600000001000000000000000008
225.120225.11225.1300000600018000012160139a100001500200100300010000>250
229.460229.45229.4700000000001000010100000001000000000000000004
232.480232.47232.4900000100000000000130000001000000000000000006
240.250240.24240.2600000000000000000100000001000000000000000002
256.075256.06256.090000000000100001041200000030000000001000000022
257.175257.10257.2500000000000000000200000000000000000000000002
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