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Esper, Oliver; Versteegh, Gerard J M; Zonneveld, Karin A F; Willems, Helmut (2004): Abundance of organic-walled dinoflagellate cysts of sediment core GeoB3603-2 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.58937, Supplement to: Esper, O et al. (2004): A palynological reconstruction of the Agulhas Retroflection (South Atlantic Ocean) during the Late Quaternary. Global and Planetary Change, 41, 31-62, https://doi.org/10.1016/j.gloplacha.2003.10.002

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Abstract:
Here, we reconstruct the varying influence of the Agulhas Current (AgC), the South Atlantic Current and the Antarctic Circumpolar Current on the Agulhas Retroflection (AgR) in the eastern South Atlantic Ocean for the last 160,000 years on the basis of the dinoflagellate cysts, pollen and spores present in a sediment core (GeoB 3603-2) from the southeastern Cape Basin offshore South Africa, where the Agulhas Current enters the Atlantic Ocean. Our analyses reveal strong orbital forcing on the heat exchange between the Indian Ocean and the South Atlantic Ocean during the Late Quaternary. Maxima in local productivity appear to be primarily related to a strengthening of the ocean circulation as a result of the high seasonal contrast during precession maxima. During precession minima, seasonal contrast was low and stratified, oligo- to mesotrophic conditions prevailed, notably when these minima coincided with the glacial terminations. The clear presence of periodicities on a sub-Milankovitch scale as well as modulations of the primary frequencies demonstrate that the Agulhas Retroflection furthermore is modulated substantially by complex interactions between the subtropical, 'precession-driven', climate and ocean circulation systems, and the southern, 'obliquity-driven', high latitudes.
Related to:
Esper, Oliver (2001): Reconstruction of Recent and Late Quaternary oceanographic conditions in the Eastern South Atlantic Ocean based on calcareous- and organic-walled dinoflagellate cysts. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 189, 130 pp, urn:nbn:de:gbv:46-ep000103156
Coverage:
Latitude: -35.125000 * Longitude: 17.543333
Date/Time Start: 1996-01-04T00:00:00 * Date/Time End: 1996-01-04T00:00:00
Minimum DEPTH, sediment/rock: 0.025 m * Maximum DEPTH, sediment/rock: 4.975 m
Event(s):
GeoB3603-2 * Latitude: -35.125000 * Longitude: 17.543333 * Date/Time: 1996-01-04T00:00:00 * Elevation: -2840.0 m * Recovery: 11.3 m * Location: Southern Cape Basin * Campaign: M34/1 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL) * Comment: CC: carbonate ooze. upper 5 cm lost
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DEPTH, sediment/rockDepth sedmGeocode
BrigantediniumBrigantedinium#Esper, OliverCounting, palynology
Brigantedinium cariacoenseB. cariacoense#Esper, OliverCounting, palynology
Brigantedinium simplexB. simplex#Esper, OliverCounting, palynology
Selenopemphix alticinctumS. alticinctum#Esper, OliverCounting, palynology
Trinovantedinium capitatumT. capitatum#Esper, OliverCounting, palynology
Echinidinium spp.Echinidinium spp.#Esper, OliverCounting, palynology
Echinidinium aculeatumE. aculeatum#Esper, OliverCounting, palynology
Echinidinium delicatumE. delicatum#Esper, OliverCounting, palynology
10 Echinidinium granulatumE. granulatum#Esper, OliverCounting, palynology
11 Echinidinium transparantumE. transparantum#Esper, OliverCounting, palynology
12 Multispinula quantaM. quanta#Esper, OliverCounting, palynology
13 Stelladinium robustumS. robustum#Esper, OliverCounting, palynology
14 Stelladinium stellatumS. stellatum#Esper, OliverCounting, palynology
15 Pentapharsodinium daleiP. dalei#Esper, OliverCounting, palynology
16 Polykrikos kofoidiiP. kofoidii#Esper, OliverCounting, palynology
17 Bitectatodinium spongiumB. spongium#Esper, OliverCounting, palynology
18 Bitectatodinium tepikienseB. tepikiense#Esper, OliverCounting, palynology
19 Polyspaeridium zoharyiP. zoharyi#Esper, OliverCounting, palynology
20 Pyxidinopsis reticulataP. reticulata#Esper, OliverCounting, palynology
21 Tuberculodinium vancampoaeT. vancampoae#Esper, OliverCounting, palynology
22 Dalella chathamensisD. chathamensis#Esper, OliverCounting, palynology
23 Nematosphaeropsis labyrinthusN. labyrinthus#Esper, OliverCounting, palynology
24 Impagidinium sp.Impagidinium sp.#Esper, OliverCounting, palynology
25 Impagidinium aculeatumI. aculeatum#Esper, OliverCounting, palynology
26 Impagidinium pallidumI. pallidum#Esper, OliverCounting, palynology
27 Impagidinium paradoxumI. paradoxum#Esper, OliverCounting, palynology
28 Impagidinium patulumI. patulum#Esper, OliverCounting, palynology
29 Impagidinium plicatumI. plicatum#Esper, OliverCounting, palynology
30 Impagidinium sphaericumI. sphaericum#Esper, OliverCounting, palynology
31 Impagidinium strialatumI. strialatum#Esper, OliverCounting, palynology
32 Impagidinium variaseptumI. variaseptum#Esper, OliverCounting, palynology
33 Impagidinium velorumI. velorum#Esper, OliverCounting, palynology
34 Lingulodinium machaerophorum longL. machaerophorum long#Esper, OliverCounting, palynology
35 Protoceratium reticulatum longP. reticulatum long#Esper, OliverCounting, palynology
36 Protoceratium reticulatum shortP. reticulatum short#Esper, OliverCounting, palynology
37 Operculodinium israelianum longO. israelianum long#Esper, OliverCounting, palynology
38 Operculodinium israelianum shortO. israelianum short#Esper, OliverCounting, palynology
39 Operculodinium janducheneiO. janduchenei#Esper, OliverCounting, palynology
40 SpiniferitesSpiniferites#Esper, OliverCounting, palynology
41 Spiniferites bentoriS. bentori#Esper, OliverCounting, palynology
42 Spiniferites delicatusS. delicatus#Esper, OliverCounting, palynology
43 Spiniferites elongatusS. elongatus#Esper, OliverCounting, palynology
44 Spiniferites hyperacanthusS. hyperacanthus#Esper, OliverCounting, palynology
45 Spiniferites membranaceusS. membranaceus#Esper, OliverCounting, palynology
46 Spiniferites mirabilisS. mirabilis#Esper, OliverCounting, palynology
47 Spiniferites pachydermusS. pachydermus#Esper, OliverCounting, palynology
48 Spiniferites ramosusS. ramosus#Esper, OliverCounting, palynology
49 Dinoflagellate cyst indeterminataDinofl indet#Esper, OliverCounting, palynology
50 Dinoflagellate cyst reworkedDinofl cyst rew#Esper, OliverCounting, palynology
51 Pollen, totalPollen tot#Esper, OliverCounting, palynology
52 Pollen, taeniate, bisaccate indeterminataPollen taen/bisac indet#Esper, OliverCounting, palynology
53 Sample massSamp mgEsper, Oliversee reference(s)
54 Sample volumeSamp vollEsper, Oliversee reference(s)
55 Slide volumeslide volmlEsper, Oliversee reference(s)
Size:
5400 data points

Data

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


Depth sed [m]

Brigantedinium [#]

B. cariacoense [#]

B. simplex [#]

S. alticinctum [#]

T. capitatum [#]

Echinidinium spp. [#]

E. aculeatum [#]

E. delicatum [#]
10 
E. granulatum [#]
11 
E. transparantum [#]
12 
M. quanta [#]
13 
S. robustum [#]
14 
S. stellatum [#]
15 
P. dalei [#]
16 
P. kofoidii [#]
17 
B. spongium [#]
18 
B. tepikiense [#]
19 
P. zoharyi [#]
20 
P. reticulata [#]
21 
T. vancampoae [#]
22 
D. chathamensis [#]
23 
N. labyrinthus [#]
24 
Impagidinium sp. [#]
25 
I. aculeatum [#]
26 
I. pallidum [#]
27 
I. paradoxum [#]
28 
I. patulum [#]
29 
I. plicatum [#]
30 
I. sphaericum [#]
31 
I. strialatum [#]
32 
I. variaseptum [#]
33 
I. velorum [#]
34 
L. machaerophorum long [#]
35 
P. reticulatum long [#]
36 
P. reticulatum short [#]
37 
O. israelianum long [#]
38 
O. israelianum short [#]
39 
O. janduchenei [#]
40 
Spiniferites [#]
41 
S. bentori [#]
42 
S. delicatus [#]
43 
S. elongatus [#]
44 
S. hyperacanthus [#]
45 
S. membranaceus [#]
46 
S. mirabilis [#]
47 
S. pachydermus [#]
48 
S. ramosus [#]
49 
Dinofl indet [#]
50 
Dinofl cyst rew [#]
51 
Pollen tot [#]
52 
Pollen taen/bisac indet [#]
53 
Samp m [g]
54 
Samp vol [l]
55 
slide vol [ml]
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0.82517810310260000100300009005322071110000241000480000010181831.7680.00050.05
0.87519300010424000300100003006518013012000253000180000130790461.7550.00050.05
0.925950005430003000100051083410340000004212001800000405301111.6660.00050.05
0.97523901122000002004000014006617094101000263000150005020460891.5210.00050.05
1.02515501176000015000002034001760907202200025110046000007023803421.7950.00050.05
1.07512800013120003003000021001472401202000010000040000601201561861.7450.00050.05
1.1251510125781000300100000400164510001020000210000550002240171111941.7290.00050.05
1.175400003500001001000190419933062020000232020380001020690821.7880.00050.05
1.22557000102400000006000060221019024011100171010430001031251001611.6790.00050.05
1.27529500428231003100040000330124001503202300016000047000000016812461.7700.00050.05
1.32526410054140001000300102200246290231000001410004800020203490831.5770.00050.05
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1.625340013100000001000080105611101201000040303031000303051401011.6020.00050.05
1.675400004182000000600801303860220610000008153004100000120322401681.7290.00050.10
1.72586001114300000010010700844801102000129100143000001019151831.7180.00050.05
1.775255200447100040020010331011384067040000432110600003010481002481.7760.00050.05
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1.875650003122101300200004010551704125400147200044000001019160741.7660.00050.05
1.92576010063200020060020190117027087020000573210710001080661211961.6120.00050.05
1.97536700653910003000000021071104501191300005330002400010306901051.6980.00050.05
2.0259200216110002001100001702810500702000065100046000002015011131.6260.00050.05
2.07585211012100030050100150039420451001004071008000000025014151.5720.00050.05
2.1254800003110005008000030058140370010002610203200000103619151.6950.00050.05
2.1754400109000000090000500833400802110048000035000002067012121.7690.00050.05
2.22516000013100000080000510491605803310084221041000017017601181.7390.00050.05
2.27521000050000000000701011363405140000001684100330000010122211751.7260.00050.05
2.32525000102000001002002013204031038122000138702024000020017801541.7300.00050.05
2.3758810013610001800000001030672203800400088401234000002023611631.6960.00050.05
2.425110000000004000000032052180250100007410102400000001350531.7910.00050.05
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2.52518000050000000000005205416051802100052200041000002045110611.8950.00050.05
2.575900021900003001003070292120320411004211101210000030153221371.7220.00050.05
2.62541000180000500300007001270604601160047200053000000026714127281.6560.00050.05
2.6753600021310000002000012701741903400000042200014300000102625024191.5080.00050.05
2.7258500022210002000000018122166560211000000503000132000000026460941.6140.00050.05
2.7759400008000010020000211561601401100024010034000000016430261.6160.00050.05
2.82521000290000100000008032080200100100004010002700000121659616161.7090.00050.05
2.87554000021000100100001201179080280020004300106900000001214608121.7580.00050.05
2.92570008410000020000000201228208098034100571000850000013115781312371.6170.00050.05
2.975310000200001001000010002388507204000036201071000201016151609101.6980.00050.05
3.0254000020000100100440052011305521000041035051001005074340511.7050.00050.05
3.075700000000000000000204145310410020003720213030000000283601331.7240.00050.05
3.12510001000000005001072311951036020101741100100000207012082521.8300.00050.05
3.175280055500000004000013141434501140100007721201760004060461301171.8300.00050.05
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3.275100020300000001100008121543400501010054000064000005065101731.7200.00050.05
3.3253200111000000020000030013710304802000059101014200060117610010121.6510.00050.05
3.375190126319200010080020514247680930114008050001840000121010215145181.6920.00050.05
3.42510000663200030012000011232522160590001000590100175000406313914016211.8020.00050.05
3.4753801411191001200160000100015521201310011007811211351017021610012018241.7890.00050.05
3.5251090071033200130054000090119128023122200940112148000011033213123201.7410.00050.05
3.57569101175100030011000060068180310242009601319600042815570221.7930.00050.05
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3.675000010000000020000300743204623240060205058000302017140701.8210.00050.05
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3.77515000040000000200103002602064000200772231650000120201711221.5890.00050.05
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