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Grimmer, Friederike; Dupont, Lydie M (2020): Pollen analysis of ODP Hole 202-1239A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.921208

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Abstract:
Vegetation and climate change in western equatorial South America were studied using palynological analysis. We studied 88 marine sediment samples from ODP Site 1239 dated between 3.9 and 2.7 Ma. The presented pollen record represents the regional vegetation from the coastal lowlands to the high montane Páramo in the western Andean Cordillera. A trend towards more open vegetation is observed. The climate changes towards cooler conditions, which is manifested by a lowering of the forest line from 3.3 Ma on. An increase of Amaranthaceae pollen after 3.1 Ma suggests drier conditions along the coast. The isochronous occurrence of environmental changes in the presented record, that is, cooling and coastal drying, with the first major pulse of ice‐rafted debris and cooling temperatures in the Northern Hemisphere suggests that these changes might have been a precursor of the intensification of the Northern Hemisphere glaciation.
Related to:
Grimmer, Friederike; Dupont, Lydie M; Jung, Gerlinde; Wefer, Gerold (2020): Piacenzian Environmental Change and the Onset of Cool and Dry Conditions in Tropical South America. Paleoceanography and Paleoclimatology, 35(11), https://doi.org/10.1029/2020PA004060
Project(s):
Coverage:
Latitude: -0.672000 * Longitude: -82.080830
Date/Time Start: 2002-05-10T19:45:00 * Date/Time End: 2002-05-13T09:10:00
Minimum DEPTH, sediment/rock: 138.75 m * Maximum DEPTH, sediment/rock: 277.90 m
Event(s):
202-1239A * Latitude: -0.672000 * Longitude: -82.080830 * Date/Time Start: 2002-05-10T19:45:00 * Date/Time End: 2002-05-13T09:10:00 * Elevation: -1414.7 m * Penetration: 515.4 m * Recovery: 515.1 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 55 cores; 515.4 m cored; 0 m drilled; 99.9 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Sample code/labelSample labelGrimmer, Friederike
DEPTH, sediment/rockDepth sedmGrimmer, FriederikeGeocode – mbsf
AnalystAnalystGrimmer, Friederike
AGEAgeka BPGrimmer, FriederikeGeocode
VolumeVolmlGrimmer, Friederike
Marker, addedMark add#Grimmer, Friederike
Marker, foundMark found#Grimmer, Friederike
HuperziaHup#Grimmer, Friederike
Jamesonia/EriosorusJamesonia/Eriosorus#Grimmer, Friederike
10 OrthrosanthusOrthrosanthus#Grimmer, Friederike
11 Polylepis/AcaenaPolylepis/Acaena#Grimmer, Friederike
12 PuyaPuya#Grimmer, Friederike
13 SisyrinchiumSis#Grimmer, Friederike
14 Bocconia-typeBocconia-T#Grimmer, Friederike
15 ClethraClethra#Grimmer, Friederike
16 ElaphoglossumElaphoglossum#Grimmer, Friederike
17 GrammitisGrt#Grimmer, Friederike
18 HedyosmumHedyosmum#Grimmer, Friederike
19 Lophosoria quadripinnataL. quadripinnata#Grimmer, Friederike
20 MorellaMorella#Grimmer, Friederike
21 PodocarpaceaePodae#Grimmer, Friederike
22 AlchorneaAlchornea#Grimmer, Friederike
23 CyatheaceaeCyatheaceae#Grimmer, Friederike
24 Pteris grandifoliaP. grandifolia#Grimmer, Friederike
25 Styloceras-typeStyloceras-T#Grimmer, Friederike
26 Urticaceae/MoraceaeUrt/Mor#Grimmer, Friederike
27 VernoniaVernonia#Grimmer, Friederike
28 PityrogrammaPityrogr#Grimmer, FriederikePityrogramma - Pteris altissima
29 PolypodiaceaePocae#Grimmer, Friederike
30 Asteraceae TubulifloraeAst.Tub#Grimmer, Friederike
31 PoaceaePoac#Grimmer, Friederike
32 AmaranthaceaeAmaceae#Grimmer, Friederike
33 Ambrosia/XanthiumAmb/Xan#Grimmer, Friederike
34 Anemia-typeAnemia-T#Grimmer, Friederike
35 ApocynaceaeApoceae#Grimmer, Friederike
36 ArtemisiaArt#Grimmer, Friederike
37 CaryophyllaceaeCphae#Grimmer, Friederike
38 CyperaceaeCypae#Grimmer, Friederike
39 EricaceaeEriae#Grimmer, Friederike
40 HymenophyllumHym#Grimmer, Friederike
41 IlexIle#Grimmer, Friederike
42 Asteraceae LigulifloraeAst.Lig#Grimmer, Friederike
43 LycopodiumLyc#Grimmer, Friederike
44 MalvaceaeMalvae#Grimmer, Friederike
45 MyrtaceaeMytae#Grimmer, Friederike
46 RosaceaeRosae#Grimmer, Friederike
47 Saccoloma elegansS. elegans#Grimmer, Friederike
48 SelaginellaSel#Grimmer, Friederike
49 Monolete psilateMon-P#Grimmer, Friederike
50 Trilete psilateTri-P#Grimmer, Friederike
51 Pollen indeterminataPollen indet#Grimmer, Friederike
52 SumSum#Grimmer, Friederike
Size:
4400 data points

Data

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


Sample label

Depth sed [m]

Analyst

Age [ka BP]

Vol [ml]

Mark add [#]

Mark found [#]

Hup [#]

Jamesonia/Eriosorus [#]
10 
Orthrosanthus [#]
11 
Polylepis/Acaena [#]
12 
Puya [#]
13 
Sis [#]
14 
Bocconia-T [#]
15 
Clethra [#]
16 
Elaphoglossum [#]
17 
Grt [#]
18 
Hedyosmum [#]
19 
L. quadripinnata [#]
20 
Morella [#]
21 
Podae [#]
22 
Alchornea [#]
23 
Cyatheaceae [#]
24 
P. grandifolia [#]
25 
Styloceras-T [#]
26 
Urt/Mor [#]
27 
Vernonia [#]
28 
Pityrogr [#]
29 
Pocae [#]
30 
Ast.Tub [#]
31 
Poac [#]
32 
Amaceae [#]
33 
Amb/Xan [#]
34 
Anemia-T [#]
35 
Apoceae [#]
36 
Art [#]
37 
Cphae [#]
38 
Cypae [#]
39 
Eriae [#]
40 
Hym [#]
41 
Ile [#]
42 
Ast.Lig [#]
43 
Lyc [#]
44 
Malvae [#]
45 
Mytae [#]
46 
Rosae [#]
47 
S. elegans [#]
48 
Sel [#]
49 
Mon-P [#]
50 
Tri-P [#]
51 
Pollen indet [#]
52 
Sum [#]
202-1239A-16H-2,84138.75FG27056.037168960000200000021008217010102611200300000010001315268184
202-1239A-16H-3,106140.49FG271510.037168714310500100039004911000010315712006000000000212154419227
202-1239A-16H-4,127142.21FG27249.53716810371001400100040102219030003351836004120001000200154023245
202-1239A-16H-6,4144.01FG27358.53716815451004001020351031322020311126235110010010012100112611135362
202-1239A-16H-7,22145.70FG274410.0371689710314110000351046232000207181232014030000010001228133316
202-1239A-17H-2,5147.46FG275610.5371686624102002010140037060003019181000200001010001484315174
202-1239A-17H-3,30149.22FG27668.037168849120403100012003211601050110176000100001000010183818180
202-1239A-17H-4,64151.08FG278310.0371689730503000000140260013000003141601000001200000100226526248
202-1239A-17H-5,74152.70FG27987.03716815524103001021191155218010306272822013010110000003176232298
1239A-17H-5152.71LD27997.037168142110011000000913108211000300192313001091000100010243810280
202-1239A-17H-6,106154.54FG28157.537168100832050100007006511200021291210002000100000000174620209
202-1239A-18H-1,79156.19FG28497.03716815321208000000150149018000401132033004020000000001153731228
202-1239A-18H-2,99157.90FG286610.0371688412206200000201147018100201101810001011000000011135417221
202-1239A-18H-3,126159.68FG28828.53716815434306001010180094017000309161820005000201000012296927328
202-1239A-18H-5,6161.51FG289910.5371688692102000000130058121010105141312001000100000011144814215
202-1239A-18H-6,19163.16FG291110.03716811301106001020150154216030004213285007001110100111246834312
202-1239A-18H-7,30164.29FG29197.5371681114010100000070027211000113111501003000000000110163618156
202-1239A-19H-1,96165.86FG29259.037168108311040010103303820230006041734100030031000000012511319376
202-1239A-19H-2,30166.71FG293210.03716848600050010101802630910010491530002000010000020175620230
202-1239A-19H-2,110167.51FG293810.03716893612010140001000103020210203261500005001000010100177836330
202-1239A-19H-3,64168.57FG294510.03716813052100101000101191221000324919030000000001000011510516309
202-1239A-19H-4,68170.13FG29579.537168689120200001021108311502010315823000001010000000146826271
202-1239A-19H-5,8171.04FG29638.53716810642101101001172070226100107131002001000100100010186730277
202-1239A-19H-6,28172.76FG297610.0371689722102000010211057219010407172403000000100000012199029304
1239A-19H-6173.23LD29809.037168869122150000302803650120001002222201000120010000310164515272
202-1239A-19H-6,119173.67FG29838.537168850010100000021016211300000417212100100020010000194917225
202-1239A-20X-1,99175.39FG300110.0371689080112010000290064024000209101440001011111000100308415297
202-1239A-20X-2,34176.25FG30068.5371688371001010010140064010010203141802003010100020000104920218
202-1239A-20X-2,124177.15FG30129.03716811420100000000170078219140203232526005000010200001195634301
202-1239A-20X-4,0178.92FG30229.5371687800205000000162128314130103211721003001010200000135323216
202-1239A-20X-4,50179.42FG302510.037168915010100000117023907000105151943002010111000011194328213
202-1239A-20X-5,19180.62FG303210.037168133112080000002210671190205016234142004010000000000214342325
202-1239A-20X-5,105181.48FG30376.03716812630107001000230144117000501181724003000100000001163028221
202-1239A-20X-6,44182.38FG304210.03716811222002102020362242116130617182473003000100200002237818305
202-1239A-20X-7,0183.46FG30497.03716859913010110001000631100101119840001000100000000194114192
202-1239A-20X-CC,24184.18FG30539.5371681079340810000025126908010304221878001000000000101245922292
202-1239A-21X-4,126185.00FG306310.03716812501401001000131074124000026163034000000000000011216830302
202-1239A-21X-6,0186.77FG30737.53716811541103000010152143122000208151933000010210200000286521260
202-1239A-21X-6,94187.71FG30796.037168105440050010011422117011030207121215001020100000012195427306
202-1239A-22X-1,7188.97FG309110.0371681003420420101024001090210105061914220000001002001222710319374
202-1239A-22X-2,9190.50FG31005.5371689982102003011120010802311020771401002000010000023218223320
202-1239A-22X-2,135191.76FG31085.0371681111101300202017025621613110651101002000010001112164931235
202-1239A-22X-3,110193.02FG31173.5371681041260010010013004921901040491201000030000100114165618224
202-1239A-22X-4,85194.28FG31254.0371689852109003000172056091001077161000101000000000283423201
202-1239A-22X-5,60195.54FG31344.03716810492209101100301170118040304222017001060010200202175946334
202-1239A-22X-6,35196.80FG31436.5371681096830100021202900881290203123202333005940100000002338627418
202-1239A-22X-7,10198.06FG31525.53716812210202001000111039217040516211711002050020100011215436254
202-1239A-23X-1,70199.30FG31676.03716811390401001000711331160014010141500001001000000002306619228
202-1239A-23X-2,46200.58FG31755.03716810122505001012920512300106010152000002042100100010267644319
202-1239A-23X-3,21201.84FG31845.5371681280140200200018001670361204081410030000100000000242012121441
202-1239A-23X-4,0203.14FG31939.53716898302022000012231841410106052629000010700106001023513538452
1239A-23X-5205.40LD32088.0371681099110500000029029012900010026133500205000100000011457277
202-1239A-23X-5,95205.60FG32095.0371681264340000021225109212800031410171200002100000000068027313
202-1239A-23X-6,70206.86FG32175.0371688841103001020192067019010408151301001011210000300138924292
202-1239A-23X-7,58208.06FG32245.03716811654307100000332199126000807252502103030000300111117730375
202-1239A-24X-2,84210.64FG32444.5371689290114101000290386122111504111312001221000000101145824292
202-1239A-24X-3,60211.90FG32515.037168780130300310114005702120040292800003000000000115155225251
202-1239A-24X-4,36213.16FG32594.53716810143315001100222063121100516222413101020010110015166031306
202-1239A-24X-5,12214.42FG32667.03716810181004000000270261130120308214625001010020000004178129349
202-1239A-24X-6,114216.94FG32818.03716810370413000001230075130011606133704010010110110111209222349
202-1239A-25X-3,22220.72FG33088.0371686621202000000110029070302051091000100000010000019348145
1239A-25X-4222.77LD33206.037168127711010000000240095215010000212111005021000100000182911260
202-1239A-25X-5,96224.48FG33308.0371681521030000010011103302300022141201000060000000003145617190
202-1239A-25X-6,72225.74FG33377.537168963100000000015002821100010741512001060000000102124614169
202-1239A-25X-7,47227.00FG33447.03716898034020010002000980140101043703000030010000303156527278
202-1239A-26X-1,106228.26FG33578.537168153021030001002230621190505192472410101000030020155826269
202-1239A-26X-2,82229.52FG33657.03716889541000000001901190600010379160000000000001123399132
202-1239A-26X-3,57230.78FG33747.0371681024210500100015003001112020451414002020000200011144414178
202-1239A-26X-4,34232.05FG33848.037168139137070010002510761250202242312020010120000110204127627329
202-1239A-26X-5,138234.60FG34037.037168150615120000002301940251001041290300204000040020395111268
202-1239A-26X-6,113235.86FG34138.53716810300303001001180064021110203101601001000000000211256029264
202-1239A-27X-1,66237.16FG34308.03716818912215000003170013604223040141814020000001300001123111720441
202-1239A-27X-2,42238.42FG34435.5371688551102000021601352801000731102000000000001000185412168
202-1239A-27X-3,17239.68FG34557.5371681164200110001022008511800030641300000010100100006266921282
202-1239A-27X-3,141240.92FG34678.0371681072430100200012206312553010551311103000000000011256917264
202-1239A-27X-4,118242.19FG34797.03716811561003000112130061019010201491703002000020200002275919260
202-1239A-27X-5,95243.46FG34929.537168141655010121013701108039110128181910000000200200002379418407
202-1239A-27X-7,37245.89FG35157.5371685780100001000120091018030205762000001000020001113459220
202-1239A-28X-1,114247.24FG35376.53716856601021000001400800700000767000000001000000005318170
202-1239A-28X-2,94248.54FG35497.537168188314041021001722984290103071811010020000102010223313828415
202-1239A-28X-3,70249.81FG35627.53716898614030020003103630181100010141502001010100000030137626289
202-1239A-28X-4,47251.09FG35776.53716816020202003030482193022200107101307000011000200010239624364
202-1239A-28X-5,28252.40FG35937.5371681259410100000039008611601030382013000000000100001368029334
202-1239A-28X-5,66252.78FG35986.037168139814020000104011106015120304121303000010010200002337227347
202-1239A-29X-1,60256.30FG36468.0371681309030300001017004801600011381002000010100200001277610231
1239A-30X-2267.10FG37548.037168109811001000012001104081300026503000000100000003158011267
1239A-30X-2267.57LD37586.5371681319010400000012011331160100002717020010810002000107265266
1239A-31X-2277.90FG39148.03716812663502002000271012111902010101213000000000000000002212317381