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Dupont, Lydie M (2006): Age, pollen and spores of ODP Site 175-1082. PANGAEA, https://doi.org/10.1594/PANGAEA.315843, Supplement to: Dupont, LM (2006): Late Pliocene vegetation and climate in Namibia (southern Africa) derived from palynology of ODP Site 1082. Geochemistry, Geophysics, Geosystems, 7(1), Q05007, https://doi.org/10.1029/2005GC001208

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Abstract:
The present-day condition of bipolar glaciation characterized by rapid and large climate fluctuations began at the end of the Pliocene with the intensification of the Northern Hemisphere continental glaciations. The global cooling steps of the late Pliocene have been documented in numerous studies of Ocean Drilling Program (ODP) sites from the Northern Hemisphere. However, the interactions between oceans and between land and ocean during these cooling steps are poorly known. In particular, data from the Southern Hemisphere are lacking. Therefore I investigated the pollen of ODP Site 1082 in the southeast Atlantic Ocean in order to obtain a high-resolution record of vegetation change in Namibia between 3.4 and 1.8 Ma. Four phases of vegetation development are inferred that are connected to global climate change. (1) Before 3 Ma, extensive, rather open grass-rich savannahs with mopane trees existed in Namibia, but the extension of desert and semidesert vegetation was still restricted. (2) Increase of winter rainfall dependent Renosterveld-like vegetation occurred between 3.1 and 2.2 Ma connected to strong advection of polar waters along the Namibian coast and a northward shift of the Polar Front Zone in the Southern Ocean. (3) Climatically induced fluctuations became stronger between 2.7 and 2.2 Ma and semiarid areas extended during glacial periods probably as the result of an increased pole-equator thermal gradient and consequently globally enhanced atmospheric circulation. (4) Aridification and climatic variability further increased after 2.2 Ma, when the Polar Front Zone migrated southward and the influence of Atlantic moisture brought by the westerlies to southern Africa declined. It is concluded that the positions of the frontal systems in the Southern Ocean which determine the locations of the high-pressure cells over the South Atlantic and the southern Indian Ocean have a strong influence on the climate of southern Africa in contrast to the climate of northwest and central Africa, which is dominated by the Saharan low-pressure cell.
Coverage:
Latitude: -21.094194 * Longitude: 11.820556
Date/Time Start: 1997-09-13T00:00:00 * Date/Time End: 1997-09-13T00:00:00
Minimum DEPTH, sediment/rock: 0.28 m * Maximum DEPTH, sediment/rock: 375.20 m
Event(s):
175-1082 * Latitude: -21.094194 * Longitude: 11.820556 * Date/Time: 1997-09-13T00:00:00 * Elevation: -1280.6 m * Penetration: 929.6 m * Recovery: 853 m * Location: Benguela Current, South Atlantic Ocean * Campaign: Leg175 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 102 cores; 929.6 m cored; 0 m drilled; 91.8% recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1AGEAgeka BPGeocode
2DEPTH, sediment/rockDepthmGeocode
3Depth, compositeDepth compmcdDupont, Lydie MIntercore correlation
4Sample code/labelSample labelDupont, Lydie MDSDP/ODP/IODP sample designation
5VolumeVolmlDupont, Lydie M
6Marker, addedMark add#Dupont, Lydie M
7Marker, foundMark found#Dupont, Lydie M
8Pollen totalPollen tot#Dupont, Lydie MCounting, palynology
9Fern sporesFern spores#Dupont, Lydie MCounting, palynology
10BotryococcusBot#Dupont, Lydie MCounting, palynology
11PediastrumPdi#Dupont, Lydie MCounting, palynology
12Spores, monoletemonolete#Dupont, Lydie MCounting, palynology
13PteridiumPtd#Dupont, Lydie MCounting, palynology
14PterisPes#Dupont, Lydie MCounting, palynology
15Tetraploa aristata conidiaTetraris#Dupont, Lydie MCounting, palynology
16Spores, triletetrilete spores#Dupont, Lydie MCounting, palynology
17Spores, trilete reticulatetrilreti#Dupont, Lydie MCounting, palynology
18AbrusAbrus#Dupont, Lydie MCounting, palynology
19AbutilonAbu#Dupont, Lydie MCounting, palynology
20Acacia/ParkiaAcacPark#Dupont, Lydie MCounting, palynology
21AcanthaceaeAcanteae#Dupont, Lydie MCounting, palynology
22AizoaceaeAizoeae#Dupont, Lydie MCounting, palynology
23AlchorneaAlchornea#Dupont, Lydie MCounting, palynology
24AllanblackiaAllanbla#Dupont, Lydie MCounting, palynology
25Aloe-typeAloe-T#Dupont, Lydie MCounting, palynology
26Antidesma-typeAntide-T#Dupont, Lydie MCounting, palynology
27Arctotis-typeArctotis-T#Dupont, Lydie MCounting, palynology
28ArecaceaeArecceae#Dupont, Lydie MCounting, palynology
29AsphodelusAph#Dupont, Lydie MCounting, palynology
30BalanitesBalanite#Dupont, Lydie MCounting, palynology
31Baphia-typeBaphia-T#Dupont, Lydie MCounting, palynology
32BarleriaBarleria#Dupont, Lydie MCounting, palynology
33BignoniaceaeBignceae#Dupont, Lydie MCounting, palynology
34BlepharisBlephari#Dupont, Lydie MCounting, palynology
35Blighia-typeBlighi-T#Dupont, Lydie MCounting, palynology
36BombaxBombax#Dupont, Lydie MCounting, palynology
37Borassus-typeBorass-T#Dupont, Lydie MCounting, palynology
38Boscia-typeBoscia-T#Dupont, Lydie MCounting, palynology
39BosqueiaBosqueia#Dupont, Lydie MCounting, palynology
40BoswelliaBoswelli#Dupont, Lydie MCounting, palynology
41BrachystegiaBrachyst#Dupont, Lydie MCounting, palynology
42BrassicaceaeBraae#Dupont, Lydie MCounting, palynology
43BrideliaBridelia#Dupont, Lydie MCounting, palynology
44BurkeaBurkea#Dupont, Lydie MCounting, palynology
45ButyrospermumButyrosp#Dupont, Lydie MCounting, palynology
46Centaurea (Africa)Centaure#Dupont, Lydie MCounting, palynology
47CadabaCadaba#Dupont, Lydie MCounting, palynology
48CalligonumCag#Dupont, Lydie MCounting, palynology
49Calycobolus-typeCalyc-T#Dupont, Lydie MCounting, palynology
50CaperoniaCaperonia#Dupont, Lydie MCounting, palynology
51CaryophyllaceaeCphae#Dupont, Lydie MCounting, palynology
52Cassia-typeCassia-T#Dupont, Lydie MCounting, palynology
53Celastraceae/HippocrateaceaeCela/Hipp#Dupont, Lydie MCounting, palynology
54CeltisCel#Dupont, Lydie MCounting, palynology
55Amaranthaceae/ChenopodiaceaeChen/Amar#Dupont, Lydie MCounting, palynology
56ChrozophoraChz#Dupont, Lydie MCounting, palynology
57ChrysophyllumChrysophyllum#Dupont, Lydie MCounting, palynology
58CissusCissus#Dupont, Lydie MCounting, palynology
59Clematis-typeClm-T#Dupont, Lydie MCounting, palynology
60CleomeCleome#Dupont, Lydie MCounting, palynology
61ClutiaClutia#Dupont, Lydie MCounting, palynology
62Cnestis-typeCnesti-T#Dupont, Lydie MCounting, palynology
63CocciniaCoccinia#Dupont, Lydie MCounting, palynology
64Coffea-typeCoffea-T#Dupont, Lydie MCounting, palynology
65Cola cordifoliaC. cordifolia#Dupont, Lydie MCounting, palynology
66Combretaceae/MelastomataceaeComb/Mela#Dupont, Lydie MCounting, palynology
67CommiphoraCommipho#Dupont, Lydie MCounting, palynology
68CorchorusCorchoru#Dupont, Lydie MCounting, palynology
69CrossopteryxCrossopt#Dupont, Lydie MCounting, palynology
70CucurbitaceaeCucureae#Dupont, Lydie MCounting, palynology
71CuvieraCuviera#Dupont, Lydie MCounting, palynology
72Cyperaceae undifferentiatedCypae.ud#Dupont, Lydie MCounting, palynology
73Daisy-typeDaisy-T#Dupont, Lydie MCounting, palynology
74Daniellia-typeDaniel-T#Dupont, Lydie MCounting, palynology
75DetariumDetarium#Dupont, Lydie MCounting, palynology
76Dialium-typeDialiu-T#Dupont, Lydie MCounting, palynology
77Diodia-typeDiodia-T#Dupont, Lydie MCounting, palynology
78DiospyrosDiospyro#Dupont, Lydie MCounting, palynology
79Dodonaea viscosaDod.v#Dupont, Lydie MCounting, palynology
80DorsteniaDorsteni#Dupont, Lydie MCounting, palynology
81DracaenaDracaena#Dupont, Lydie MCounting, palynology
82EcboliumEcbolium#Dupont, Lydie MCounting, palynology
83Entada-typeEntada-T#Dupont, Lydie MCounting, palynology
84Ericaceae undifferentiatedEriae.ud#Dupont, Lydie MCounting, palynology
85ErythrinaErythrina#Dupont, Lydie MCounting, palynology
86Eugenia/SyzygiumEuge/Syzy#Dupont, Lydie MCounting, palynology
87Euphorbia-typeEup-T#Dupont, Lydie MCounting, palynology
88Euphorbiaceae undifferentiatedEuphceae.ud#Dupont, Lydie MCounting, palynology
89FagoniaFan#Dupont, Lydie MCounting, palynology
90Gazania-typeGazania-T#Dupont, Lydie MCounting, palynology
91Colophospermum mopaneC. mopane#Dupont, Lydie MCounting, palynology
92Gomphrena-typeGomphr-T#Dupont, Lydie MCounting, palynology
93GrewiaGrewia#Dupont, Lydie MCounting, palynology
94Araliaceae undifferentiatedAraae.ud#Dupont, Lydie MCounting, palynology
95HeliotropiumHelio#Dupont, Lydie MCounting, palynology
96Heritiera-typeHeriti-T#Dupont, Lydie MCounting, palynology
97HermanniaHermannia#Dupont, Lydie MCounting, palynology
98Hibiscus-typeHibisc-T#Dupont, Lydie MCounting, palynology
99Hygrophila-typeHygrop-T#Dupont, Lydie MCounting, palynology
100HymenocardiaHymenoca#Dupont, Lydie MCounting, palynology
101HyphaeneHyph#Dupont, Lydie MCounting, palynology
102Hypoestes typeHypoes-T#Dupont, Lydie MCounting, palynology
103Icacinaceae undifferentiatedIcacinac.ud#Dupont, Lydie MCounting, palynology
104Ilex cf. I. mitisIlexmiti#Dupont, Lydie MCounting, palynology
105Indeterminata/variaIndet#Dupont, Lydie MCounting, palynology
106Indigofera-typeIndigo-T#Dupont, Lydie MCounting, palynology
107IodesIodes#Dupont, Lydie MCounting, palynology
108IrvingiaIrvingia#Dupont, Lydie MCounting, palynology
109Isoberlinia-typeBerlin-T#Dupont, Lydie MCounting, palynology
110IxoraIxora#Dupont, Lydie MCounting, palynology
111Justicia/MonechmaJust/Mone#Dupont, Lydie MCounting, palynology
112KedrostisKedrosti#Dupont, Lydie MCounting, palynology
113KhayaKhaya#Dupont, Lydie MCounting, palynology
114KlaineanthusKlainean#Dupont, Lydie MCounting, palynology
115LanneaLannea#Dupont, Lydie MCounting, palynology
116LeeaLeea#Dupont, Lydie MCounting, palynology
117Compositae LigulifloraeAsteLigu#Dupont, Lydie MCounting, palynology
118Liliaceae undifferentiatedLilae.ud#Dupont, Lydie MCounting, palynology
119LophiraLophira#Dupont, Lydie MCounting, palynology
120LuffaLuffa#Dupont, Lydie MCounting, palynology
121LythraceaeLytae#Dupont, Lydie MCounting, palynology
122Maerua-typeMaerua-T#Dupont, Lydie MCounting, palynology
123MallotusMallotus#Dupont, Lydie MCounting, palynology
124ManilkaraManilkar#Dupont, Lydie MCounting, palynology
125MeliaceaeMeliaceae#Dupont, Lydie MCounting, palynology
126MelochiaMelochia#Dupont, Lydie MCounting, palynology
127MonopetalanthusMonopeta#Dupont, Lydie MCounting, palynology
128MorindaMorinda#Dupont, Lydie MCounting, palynology
129MyricaMyr#Dupont, Lydie MCounting, palynology
130Neurada/GrielumNeurceae#Dupont, Lydie MCounting, palynology
131NewbouldiaNewbould#Dupont, Lydie MCounting, palynology
132NitrariaNit#Dupont, Lydie MCounting, palynology
133NothofagusNothofagus#Dupont, Lydie MCounting, palynology
134NyctaginaceaeNyctceae#Dupont, Lydie MCounting, palynology
135NymphaeaNym#Dupont, Lydie MCounting, palynology
136OcimumOci#Dupont, Lydie MCounting, palynology
137OleaOle#Dupont, Lydie MCounting, palynology
138Olea capensisOleahoch#Dupont, Lydie MCounting, palynology
139OrmocarpumOrmocarp#Dupont, Lydie MCounting, palynology
140Polygonum senegalense-typePolyse-T#Dupont, Lydie MCounting, palynology
141PandanusPandanus#Dupont, Lydie MCounting, palynology
142PapilionoideaePapilion#Dupont, Lydie MCounting, palynology
143ParinariParinari#Dupont, Lydie MCounting, palynology
144PavettaPavetta#Dupont, Lydie MCounting, palynology
145PeganumPeg#Dupont, Lydie MCounting, palynology
146PelargoniumPelargon#Dupont, Lydie MCounting, palynology
147PentasPentas#Dupont, Lydie MCounting, palynology
148PentaclethraPentacle#Dupont, Lydie MCounting, palynology
149Pentzia/Cotula-typePentCotu-T#Dupont, Lydie MCounting, palynology
150AfrormosiaAfrormos#Dupont, Lydie MCounting, palynology
151PetalidiumPetalidi#Dupont, Lydie MCounting, palynology
152PhyllanthusPhyllant#Dupont, Lydie MCounting, palynology
153PiliostigmaPiliosti#Dupont, Lydie MCounting, palynology
154PlantagoPla#Dupont, Lydie MCounting, palynology
155Plumbaginaceae undifferentiatedPluae.ud#Dupont, Lydie MCounting, palynology
156Poaceae undifferentiatedPoac.ud#Dupont, Lydie MCounting, palynology
157PodocarpusPod#Dupont, Lydie MCounting, palynology
158PolycarponPon#Dupont, Lydie MCounting, palynology
159Polygala-typePoa-T#Dupont, Lydie MCounting, palynology
160Polygonum aviculare-typePol.i-T#Dupont, Lydie MCounting, palynology
161PortulacaPor#Dupont, Lydie MCounting, palynology
162PrivaPriva-T#Dupont, Lydie MCounting, palynology
163ProteaProtea#Dupont, Lydie MCounting, palynology
164PseudoprosopisPseudopr#Dupont, Lydie MCounting, palynology
165PterocarpusPterocar#Dupont, Lydie MCounting, palynology
166PycnanthusPycnanth#Dupont, Lydie MCounting, palynology
167RaphiaRaphia#Dupont, Lydie MCounting, palynology
168RestionaceaeRestceae#Dupont, Lydie MCounting, palynology
169Rhamnaceae undifferentiatedRhamnaceae.ud#Dupont, Lydie MCounting, palynology
170RhizophoraRhiz#Dupont, Lydie MCounting, palynology
171Rhus-typeRhu-T#Dupont, Lydie MCounting, palynology
172Rhynchosia-typeRhynch-T#Dupont, Lydie MCounting, palynology
173Rubiaceae undifferentiatedRubea.ud#Dupont, Lydie MCounting, palynology
174Rubiaceae tetradeRubtetra#Dupont, Lydie MCounting, palynology
175RumexRum#Dupont, Lydie MCounting, palynology
176SabiceaSabicea#Dupont, Lydie MCounting, palynology
177Salvadora persicaSalvador#Dupont, Lydie MCounting, palynology
178SapotaceaeSapeae#Dupont, Lydie MCounting, palynology
179JasminumJam#Dupont, Lydie MCounting, palynology
180Sesbania-typeSesban-T#Dupont, Lydie MCounting, palynology
181Solanum-typeSolanum-T#Dupont, Lydie MCounting, palynology
182SopubiaSopubia#Dupont, Lydie MCounting, palynology
183SpathodeaSpathode#Dupont, Lydie MCounting, palynology
184BorreriaBorreria#Dupont, Lydie MCounting, palynology
185StachytarphetaStachy-T#Dupont, Lydie MCounting, palynology
186SterculiaceaeSteae#Dupont, Lydie MCounting, palynology
187Sterculia-typeStercu-T#Dupont, Lydie MCounting, palynology
188StereospermumStereosp#Dupont, Lydie MCounting, palynology
189Stipularia africanaStipular#Dupont, Lydie MCounting, palynology
190Stoebe-typeStoebe-T#Dupont, Lydie MCounting, palynology
191Strophanthus-typeStrophan-T#Dupont, Lydie MCounting, palynology
192StrychnosStrychno#Dupont, Lydie MCounting, palynology
193Tamarindus/CryptosepalumTama/Cryp#Dupont, Lydie MCounting, palynology
194TapinanthusTapinant#Dupont, Lydie MCounting, palynology
195Tarchonanthus/Artemisia-typeTarch-T#Dupont, Lydie MCounting, palynology
196TelephiumTelephiu#Dupont, Lydie MCounting, palynology
197TephrosiaTephrosi#Dupont, Lydie MCounting, palynology
198TeucriumTeu#Dupont, Lydie MCounting, palynology
199ThesiumThe#Dupont, Lydie MCounting, palynology
200ThymelaeaceaeThyae#Dupont, Lydie MCounting, palynology
201TribulusTus#Dupont, Lydie MCounting, palynology
202TriumfettaTriumfet#Dupont, Lydie MCounting, palynology
203Compositae TubulifloraeAsteTubu#Dupont, Lydie MCounting, palynology
204Typha angustifolia-typeTyp.a-T#Dupont, Lydie MCounting, palynology
205UapacaUapaca#Dupont, Lydie MCounting, palynology
206UrticaceaeUrtae#Dupont, Lydie MCounting, palynology
207Compositae VernonieaeAsteVern#Dupont, Lydie MCounting, palynology
208ViscumVis#Dupont, Lydie MCounting, palynology
209WelwitschiaWelwitsc#Dupont, Lydie MCounting, palynology
210ZanthoxylumZanthoxy#Dupont, Lydie MCounting, palynology
211ZygophyllumZyg#Dupont, Lydie MCounting, palynology
Size:
57893 data points

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