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Zhao, Xueqin; Dupont, Lydie M; Meadows, Michael E; Wefer, Gerold (2015): Pollen from multicores surface samples from Namaquan mudbelt. PANGAEA, https://doi.org/10.1594/PANGAEA.853957, Supplement to: Zhao, X et al. (2016): Pollen distribution in the marine surface sediments of the mudbelt along the west coast of South Africa. Quaternary International, 404, 44-56, https://doi.org/10.1016/j.quaint.2015.09.032

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Abstract:
The distribution of pollen in marine surface sediments offshore of the west coast of South Africa has been investigated to aid in the interpretation of marine pollen records of onshore vegetation changes. A transect of sediment surface pollen samples retrieved from the Namaqualand mudbelt from just south of the Orange River mouth (29°S) to St Helena Bay (33°S) indicates distinctive pollen spectra reflecting vegetation communities on the adjacent continent. Pollen concentration increases southwards, partly in relation to greater pollen productivity due to higher biomass and density of fynbos vegetation and of sedimentary processes and low pollen concentrations consequent to dilution with silt and clay from the Orange River. The distribution of specific pollen taxa suggests that the Orange River is a major contributor of pollen to the northern mudbelt declining southwards, while the pollen distribution in the central mudbelt is largely attributable to seasonal inputs of pollen from offshore berg winds and local ephemeral Namaqualand rivers. The typical fynbos elements dominate in the southern mudbelt indicating a pollen source mainly in the fynbos vegetation types. These conclusions support a companion analysis of fossil pollen records of two marine sediment cores from the northern and southern mudbelt respectively. This study demonstrates that pollen records from marine sediment cores in the Namaqualand mudbelt have the potential to be a tool to reconstruct palaeovegetation on the adjacent continent. However, to better reconstruct the palaeoclimate of South Africa and fully understand the relations between terrestrial and marine deposits, more marine surface sediments along the western coast of South Africa as well as more terrestrial surface sediments need to be studied.
Coverage:
Median Latitude: -30.636777 * Median Longitude: 17.416000 * South-bound Latitude: -32.495667 * West-bound Longitude: 16.614500 * North-bound Latitude: -29.121500 * East-bound Longitude: 18.221500
Date/Time Start: 2003-01-28T18:50:00 * Date/Time End: 2003-01-31T14:26:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.025 m
Event(s):
GeoB8319-1 * Latitude: -32.495667 * Longitude: 18.078333 * Date/Time: 2003-01-28T18:50:00 * Elevation: -69.0 m * Recovery: 0.34 m * Campaign: M57/1 * Basis: Meteor (1986) * Device: MultiCorer (MUC) * Comment: Greenish black, muddy sand, bivalve/ gastropods shell fragments, living gastropods, BWT:10.4°C. BWS for d13C and d18O analysis
GeoB8321-1 * Latitude: -31.863500 * Longitude: 18.116833 * Date/Time: 2003-01-29T12:30:00 * Elevation: -104.0 m * Recovery: 0.55 m * Campaign: M57/1 * Basis: Meteor (1986) * Device: MultiCorer (MUC) * Comment: Dark greenish gray, mud, molluscs shell fragments, worms, bioturbated
GeoB8322-1 * Latitude: -31.953667 * Longitude: 18.117833 * Date/Time: 2003-01-29T14:20:00 * Elevation: -105.0 m * Recovery: 0.46 m * Campaign: M57/1 * Basis: Meteor (1986) * Device: MultiCorer (MUC) * Comment: Very dark grayish brown, mud, shell fragments. BWT: 16.3°C. BWS for d13C and d18O analysis
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEventDupont, Lydie M
2DEPTH, sediment/rockDepthmDupont, Lydie MGeocode
3Depth, top/minDepth topmDupont, Lydie M
4Depth, bottom/maxDepth botmDupont, Lydie M
5Justicia/MonechmaJust/Mone#Dupont, Lydie MCounting, palynology
6Hypoestes typeHypoes-T#Dupont, Lydie MCounting, palynology
7PetalidiumPetalidi#Dupont, Lydie MCounting, palynology
8AizoaceaeAizoeae#Dupont, Lydie MCounting, palynology
9Aloe-typeAloe-T#Dupont, Lydie MCounting, palynology
10Amaranthaceae/ChenopodiaceaeChen/Amar#Dupont, Lydie MCounting, palynology
11AnthospermumAnthosp#Dupont, Lydie MCounting, palynology
12Artemisia (Africa)Artemisi#Dupont, Lydie MCounting, palynology
13Compositae TubulifloraeAsteTubu#Dupont, Lydie MCounting, palynology
14Pentzia-typePentzia-T#Dupont, Lydie MCounting, palynology
15Stoebe-typeStoebe-T#Dupont, Lydie MCounting, palynology
16Tarchonanthus-typeTarcho-T#Dupont, Lydie MCounting, palynology
17Gazania-typeGazania-T#Dupont, Lydie MCounting, palynologyincludes Pacourina-type
18BrassicaceaeBraae#Dupont, Lydie MCounting, palynology
19CaryophyllaceaeCphae#Dupont, Lydie MCounting, palynology
20Celastraceae/HippocrateaceaeCela/Hipp#Dupont, Lydie MCounting, palynology
21Amaranthaceae/ChenopodiaceaeChen/Amar#Dupont, Lydie MCounting, palynology
22CliffortiaCliffortia#Dupont, Lydie MCounting, palynology
23CombretaceaeComeae#Dupont, Lydie MCounting, palynology
24ConvolvulaceaeConae#Dupont, Lydie MCounting, palynology
25DiospyrosDiospyro#Dupont, Lydie MCounting, palynology
26EricaceaeEriae#Dupont, Lydie MCounting, palynology
27EucleaEuclea#Dupont, Lydie MCounting, palynology
28EuphorbiaEup#Dupont, Lydie MCounting, palynology
29Euphorbiaceae undifferentiatedEuphceae.ud#Dupont, Lydie MCounting, palynology
30LamiaceaeLamae#Dupont, Lydie MCounting, palynology
31LeguminosaeLeg#Dupont, Lydie MCounting, palynology
32MyricaMyr#Dupont, Lydie MCounting, palynology
33MyrsineMyrsine#Dupont, Lydie MCounting, palynology
34Neurada/GrielumNeurceae#Dupont, Lydie MCounting, palynology
35OleaOle#Dupont, Lydie MCounting, palynology
36PinusPin#Dupont, Lydie MCounting, palynology
37PoaceaePoac#Dupont, Lydie MCounting, palynology
38PodocarpusPod#Dupont, Lydie MCounting, palynology
39ProteaProtea#Dupont, Lydie MCounting, palynology
40PolygalaceaePgaae#Dupont, Lydie MCounting, palynology
41QuercusQue#Dupont, Lydie MCounting, palynology
42RestionaceaeRestceae#Dupont, Lydie MCounting, palynology
43RhamnaceaeRhaae#Dupont, Lydie MCounting, palynology
44RubiaceaeRubae#Dupont, Lydie MCounting, palynology
45RutaceaeRutae#Dupont, Lydie MCounting, palynology
46RanunculaceaeRanae#Dupont, Lydie MCounting, palynology
47SapindaceaeSapiceae#Dupont, Lydie MCounting, palynology
48SalixSal#Dupont, Lydie MCounting, palynology
49SolanaceaeSolae#Dupont, Lydie MCounting, palynology
50RhusRhu#Dupont, Lydie MCounting, palynology
51LanneaLannea#Dupont, Lydie MCounting, palynology
52TiliaTil#Dupont, Lydie MCounting, palynology
53PasserinaPasserina#Dupont, Lydie MCounting, palynology
54TribulusTus#Dupont, Lydie MCounting, palynology
55AlnusAln#Dupont, Lydie MCounting, palynology
56RosaceaeRosae#Dupont, Lydie MCounting, palynology
57AcaciaAca#Dupont, Lydie MCounting, palynology
58VerbenaceaeVerbeae#Dupont, Lydie MCounting, palynology
59CrassulaceaeCraae#Dupont, Lydie MCounting, palynology
60UlmusUlm#Dupont, Lydie MCounting, palynology
61Onagraceae (Africa)Onagrace#Dupont, Lydie MCounting, palynology
62Indeterminata/variaIndet#Dupont, Lydie MCounting, palynology
63CyperaceaeCypae#Dupont, Lydie MCounting, palynology
64Gunnera perpensaG. perpensa#Dupont, Lydie MCounting, palynology
65Phragmites-typePhy-T#Dupont, Lydie MCounting, palynology
66TyphaTyp#Dupont, Lydie MCounting, palynology
67OphioglossumOph#Dupont, Lydie MCounting, palynology
68Spores, triletetrilete spores#Dupont, Lydie MCounting, palynology
69Pollen totalPollen tot#Dupont, Lydie MCounting, palynology
70VolumeVolcm3Dupont, Lydie M
71Marker, foundMark found#Dupont, Lydie M
72Marker, addedMark add#Dupont, Lydie M
Size:
840 data points

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