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Benson, Richard H; Peypouquet, Jean Pierre (1983): (Appendix) Ostracodes at DSDP Leg 72 Holes. PANGAEA, https://doi.org/10.1594/PANGAEA.811745, Supplement to: Benson, RH; Peypouquet, JP (1983): The upper and mid-bathyal Cenozoic ostracode faunas of the Rio Grande Rise found on Leg 72 Deep Sea Drilling Project. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 805-818, https://doi.org/10.2973/dsdp.proc.72.137.1983

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Abstract:
From the study of the ostracodes of Sites 516, 517, and 518 in comparison with those of Sites 21, 22, and 357, we can show that a time lag (early to late Oliogene) existed between the formation of the deep water masses (mid-bathyal ± 2000 m) and those of intermediate depths (upper bathyal ± 1000 m). The ostracode faunas suggest that while the Antarctic Intermediate Water (O2 = 4.5 to 5 ml/l) was flowing through the Vema Trough to fill the northern basins, the returning less-dense, warmer water (O2 = 3.5 to 5 ml/l) originating in Tethys was being gradually displaced upslope.
Efforts to identify shallow (less than 200 m) faunas were unsuccessful. No evidence of significant changes in paleodepth or close proximity to islands could be found that could not be better explained by water-mass changes.
Studies of the genera Poseidonamicus and Krithe suggest an important water mass change at about 14 Ma (late-middle Miocene), but the cause of this event is not yet understood.
Project(s):
Coverage:
Median Latitude: -30.368325 * Median Longitude: -36.686675 * South-bound Latitude: -30.946800 * West-bound Longitude: -38.135300 * North-bound Latitude: -29.973700 * East-bound Longitude: -35.285000
Date/Time Start: 1980-03-11T00:00:00 * Date/Time End: 1980-04-02T00:00:00
Minimum Elevation: -3944.0 m * Maximum Elevation: -1313.0 m
Event(s):
72-516  * Latitude: -30.276300 * Longitude: -35.285200 * Date/Time: 1980-03-11T00:00:00 * Elevation: -1313.0 m * Penetration: 183.3 m * Recovery: 148.1 m * Location: South Atlantic/CONT RISE * Campaign: Leg72 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 40 cores; 166.1 m cored; 17.2 m drilled; 89.2 % recovery
72-516F  * Latitude: -30.276500 * Longitude: -35.285000 * Date/Time: 1980-03-11T00:00:00 * Elevation: -1313.0 m * Penetration: 1270.6 m * Recovery: 690.1 m * Location: South Atlantic/CONT RISE * Campaign: Leg72 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 127 cores; 1092.5 m cored; 9 m drilled; 63.2 % recovery
72-517  * Latitude: -30.946800 * Longitude: -38.041200 * Date/Time: 1980-03-30T00:00:00 * Elevation: -2963.0 m * Penetration: 50.9 m * Recovery: 48.2 m * Location: South Atlantic/FLANK * Campaign: Leg72 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 12 cores; 50.9 m cored; 0 m drilled; 94.6 % recovery
Comment:
? = species uncertain.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
Latitude of eventLatitude
Longitude of eventLongitude
Elevation of eventElevationm
Sample code/labelSample labelBenson, Richard HDSDP/ODP/IODP sample designation
StageStageBenson, Richard H
Nannofossil zoneNannos zoneBenson, Richard H
ZoneZoneBenson, Richard HOstracode zones (Benson, 1975; doi:10.1111/j.1502-3931.1975.tb00919.x)
Poseidonamicus sp.Poseidonamicus sp.#Benson, Richard H
10 Henryhowella sp.Henryhowella sp.#Benson, Richard H
11 Bythocythere sp.Bythocythere sp.#Benson, Richard H
12 Cytheropteron sp.Cytheropteron sp.#Benson, Richard H
13 Argilloecia sp.Argilloecia sp.#Benson, Richard H
14 Atlanticythere sp.Atlanticythere sp.#Benson, Richard H
15 Ambocythere sp.Ambocythere sp.#Benson, Richard H
16 Cytheropteron sp.Cytheropteron sp.#Benson, Richard H
17 Bradleya sp.Bradleya sp.#Benson, Richard H
18 Krithe sp.Krithe sp.#Benson, Richard H
19 Trachyleberis sp.Trachyleberis sp.#Benson, Richard H
20 Echinocythereis ericeaE. ericea#Benson, Richard H
21 Rockallia sp.Rockallia sp.#Benson, Richard H
22 Bythocythere sp.Bythocythere sp.#Benson, Richard H
23 Cytherella sp.Cytherella sp.#Benson, Richard H
24 Thalassocythere sp.Thalassocythere sp.#Benson, Richard H
25 Abyssocythere sp.Abyssocythere sp.#Benson, Richard H
26 Eucythere sp.Eucythere sp.#Benson, Richard H
27 Bairdia sp.Bairdia sp.#Benson, Richard H
28 Oxycythereis sp.Oxycythereis sp.#Benson, Richard H
29 Suhmicythere sp.Suhmicythere sp.#Benson, Richard H
30 Bythocypris sp.Bythocypris sp.#Benson, Richard H
31 Eucythere sp.Eucythere sp.#Benson, Richard H
32 Parakrithe sp.Parakrithe sp.#Benson, Richard H
33 Cythereis sp.Cythereis sp.#Benson, Richard H
34 Paracypris sp.Paracypris sp.#Benson, Richard H
35 Parakrithe sp.Parakrithe sp.#Benson, Richard H
36 Agrenocythere sp.Agrenocythere sp.#Benson, Richard H
37 Cyprideis sp.Cyprideis sp.#Benson, Richard H
38 Ostracoda indeterminataOstrac indet#Benson, Richard H
39 Hyphalocythere sp.Hyphalocythere sp.#Benson, Richard H
40 Pelecocythere sp.Pelecocythere sp.#Benson, Richard H
Size:
1071 data points

Data

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


Event

Latitude

Longitude

Elevation [m]

Sample label

Stage

Nannos zone

Zone
(Ostracode zones (Benson, 1975...)

Poseidonamicus sp. [#]
10 
Henryhowella sp. [#]
11 
Bythocythere sp. [#]
12 
Cytheropteron sp. [#]
13 
Argilloecia sp. [#]
14 
Atlanticythere sp. [#]
15 
Ambocythere sp. [#]
16 
Cytheropteron sp. [#]
17 
Bradleya sp. [#]
18 
Krithe sp. [#]
19 
Trachyleberis sp. [#]
20 
E. ericea [#]
21 
Rockallia sp. [#]
22 
Bythocythere sp. [#]
23 
Cytherella sp. [#]
24 
Thalassocythere sp. [#]
25 
Abyssocythere sp. [#]
26 
Eucythere sp. [#]
27 
Bairdia sp. [#]
28 
Oxycythereis sp. [#]
29 
Suhmicythere sp. [#]
30 
Bythocypris sp. [#]
31 
Eucythere sp. [#]
32 
Parakrithe sp. [#]
33 
Cythereis sp. [#]
34 
Paracypris sp. [#]
35 
Parakrithe sp. [#]
36 
Agrenocythere sp. [#]
37 
Cyprideis sp. [#]
38 
Ostrac indet [#]
39 
Hyphalocythere sp. [#]
40 
Pelecocythere sp. [#]
72-516 -30.2763-35.2852-131372-516-2-2,90-100QuaternaryNN19/N22B-354639302?1229480000000000000000000000
72-516-30.2763-35.2852-131372-516-4-2,80-90PlioceneNN16/N21B-3587300200401480125133000000000000000000
72-516-30.2763-35.2852-131372-516-8-2,40-50lower PlioceneNN14/N19B-346316070030138818140111000000000000000
72-516-30.2763-35.2852-131372-516-12-2,80-90upper MioceneN-16B-3278160110020301184110000100000000000000
72-516-30.2763-35.2852-131372-516-14-2,85-95middle MioceneNN9-10/N14B-30201300000012306130100011100000000000
72-516-30.2763-35.2852-131372-516-18-2,70-80middle MioceneNN5B-29310024330920?50005200380000000000000
72-516-30.2763-35.2852-131372-516-27-2,60-70lower MioceneNN3/N5-6B-2816400620041310001000010021000000000
72-516-30.2763-35.2852-131372-516-39-2,64-74lower MioceneNN2/N5B-2738120115010249?10001500060010100000000
72-516-30.2763-35.2852-131372-516-42-2,55-65lower MioceneNN2/N4B-26430000001100001000100000?10000000
72-516F -30.2765-35.2850-131372-516F-3-3,62-72lower MioceneNN2-N4B-26140000002100006?300000000?10010000
72-516F-30.2765-35.2850-131372-516F-6-2,25-35lower MioceneNN1/N4B-2603000000040000100000000001000000
72-516F-30.2765-35.2850-131372-516F-12-1,85-90upper OligoceneNP24/P22B-25090000000510000400000024100000000
72-516F-30.2765-35.2850-131372-516F-18-1,79-89upper OligoceneNP24/P21B-2406000000035000900000000000010000
72-516F-30.2765-35.2850-131372-516F-29-2,70-80upper OligoceneNP23/P20B-2301000000000000000000000000001100
72-516F-30.2765-35.2850-131372-516F-34-2,40-50lower OligoceneNP22.23/P19B-22000000000400004000100000?10000100
72-516F-30.2765-35.2850-131372-516F-37-2,40-50lower OligoceneNP21/P19B-2200000000021000400000000000004000
72-516F-30.2765-35.2850-131372-516F-40-2,40-50upper EoceneNP20/P15-16B-200?60000000100001600000000000000000
72-516F-30.2765-35.2850-131372-516F-44-1,17-27upper EoceneNP-18/P15B-1901000000010000000000000000002200
72-516F-30.2765-35.2850-131372-516F-50-1,125-135middle EoceneNP17/P11-14B-17-1900000000030000000000000004005000
72-516F-30.2765-35.2850-131372-516F-60-1,55-60middle EoceneNP15-16/P11-12B-1700000000000000000000000000000300
72-516F-30.2765-35.2850-131372-516F-81-2,75-85lower EoceneNP-10-12/P6-7B-15-1600000000000000100000000001000000
72-516F-30.2765-35.2850-131372-516F-92-1,33-43upper MaestrichtianB-900000000000000000000000000001200
72-516F-30.2765-35.2850-131372-516F-100-2,86-94lower MaestrichtianB-900000000000000000000000000000100
72-517 -30.9468-38.0412-296372-517-4-2,40-50QuaternaryNN20-2181000000010000010000000000000000
72-517-30.9468-38.0412-296372-517-8-2,100-110upper PlioceneNN16/N211260000000150000000000000000000300
72-517-30.9468-38.0412-296372-517-12-2,25-35upper PlioceneNN15/N19660000000190000001000000000010200
72-518 -29.9737-38.1353-394472-518-4-3,40-50QuaternaryNN19/N2220000000060000010000000000000000
72-518-29.9737-38.1353-394472-518-9-2,110-120lower PlioceneNN14-15/N112700001001901000000000000000101?12
72-518-29.9737-38.1353-394472-518-13-1,40-50upper MioceneNN11/N1711000000020000003000000000000000
72-518-29.9737-38.1353-394472-518-18-1,15-25lower to middle MioceneNN4/N600000000100000000000000000000000