Zhang, Jijun; Scott, David B (1996): Pliocene benthic foraminiferal abundances of ODP Hole 105-646B from north Atlantic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.758101, Supplement to: Zhang, J; Scott, DB (1996): Messinian deep-water turbidites and glacioeustatic sea-level changes in the North Atlantic: Linkage to the Mediterranean salinity crisis. Paleoceanography, 11(3), 277-297, https://doi.org/10.1029/96PA00572
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Abstract:
Our benthic foraminiferal data clearly indicate eight layers of deep-water turbidites during the Messinian (MTL 1-8) and one in the early Pliocene (PTL 1) in Ocean Drilling Program Leg 105, Site 646B. These deep-water tuibidite deposits are characterized by highly concentrated agglutinated marsh benthic foraminifera (e.g., Trochammina cf. squamata, Ammotium sp. A, Miliammina fusca), rounded quartz, polished thick-walled benthic foraminifera, wood fragments, plant seeds, plant fruit, and highly concentrated mica and are interbedded with sediments containing deep-water benthic faunas. We suggest these turbidites deposited during sea-level low stands (approx. 80-100 m below sea level), and their ages are tentatively correlated to 6.59, 6.22, 6.01, 5.89, 5.75, 5.7, 5.65, 5.60, and 5.55 Ma, respectively, based on the Messinian oxygen isotope enrichments at Site 552A of Deep Sea Drilling Project Leg 81. The turbidites layers during the late Messinian, coeval with frequent climate changes suggested by six oxygen enrichment excursions of Site 552A, may have been in part linked to the late Messinian evaporite deposits in the Mediterranean Basin. The most profound climate changes at 5.75 and 5.55 Ma may have been related to the Lower and Upper Evaporites in the Mediterranean Basin.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 58.209300 * Longitude: -48.369100
Date/Time Start: 1985-10-04T08:45:00 * Date/Time End: 1985-10-13T21:01:00
Minimum DEPTH, sediment/rock: 384.10 m * Maximum DEPTH, sediment/rock: 758.80 m
Event(s):
105-646B * Latitude: 58.209300 * Longitude: -48.369100 * Date/Time Start: 1985-10-04T08:45:00 * Date/Time End: 1985-10-13T21:01:00 * Elevation: -3459.0 m * Penetration: 766.7 m * Recovery: 404.25 m * Location: Labrador Sea * Campaign: Leg105 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 80 cores; 766.2 m cored; 0 m drilled; 52.8 % recovery
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Sample code/label | Sample label | Zhang, Jijun | DSDP/ODP/IODP sample designation | ||
2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
3 | Foraminifera, benthic | Foram benth | # | Zhang, Jijun | counted/picked | |
4 | Foraminifera, benthic | Foram benth | #/cm3 | Zhang, Jijun | ||
5 | Foraminifera, benthic calcareous | Foram benth calc | % | Zhang, Jijun | Counting | |
6 | Foraminifera, benthic | Foram benth | % | Zhang, Jijun | Counting | of total fauna (benthic + planktonic) |
7 | Fragmentation index, planktic foraminifera | Fragm plankt foram | % | Zhang, Jijun | Counting | |
8 | Lenticulina spp. | Lenticulina spp. | % | Zhang, Jijun | Counting | |
9 | Nonion spp. | Nonion spp. | % | Zhang, Jijun | Counting | |
10 | Nonionella spp. | Nonionella spp. | % | Zhang, Jijun | Counting | |
11 | Astrononion echolsi | A. echolsi | % | Zhang, Jijun | Counting | |
12 | Astrononion umbilicatulum | A. umbilicatulum | % | Zhang, Jijun | Counting | |
13 | Elphidium sp. | Elphidium sp. | % | Zhang, Jijun | Counting | genus questionable |
14 | Pullenia bulloides | P. bulloides | % | Zhang, Jijun | Counting | |
15 | Pullenia quinqueloba | P. quinqueloba | % | Zhang, Jijun | Counting | |
16 | Melonis barleeanus | M. barleeanus | % | Zhang, Jijun | Counting | including Melonis affinis |
17 | Melonis pompilioides | M. pompilioides | % | Zhang, Jijun | Counting | |
18 | Florilus sp. | Florilus sp. | % | Zhang, Jijun | Counting | |
19 | Sphaeroidina bulloides | S. bulloides | % | Zhang, Jijun | Counting | |
20 | Oridorsalis umbonatus | O. umbonatus | % | Zhang, Jijun | Counting | |
21 | Planulina rugosa | P. rugosa | % | Zhang, Jijun | Counting | |
22 | Planulina wuellerstorfi | P. wuellerstorfi | % | Zhang, Jijun | Counting | |
23 | Cibicides lobatulus | C. lobatulus | % | Zhang, Jijun | Counting | |
24 | Cibicidoides bradyi | C. bradyi | % | Zhang, Jijun | Counting | |
25 | Cibicidoides spp. | Cibicidoides spp. | % | Zhang, Jijun | Counting | |
26 | Rosalina sp. | Rosalina sp. | % | Zhang, Jijun | Counting | genus questionable |
27 | Gyroidina soldanii | G. soldanii | % | Zhang, Jijun | Counting | |
28 | Gavelinopsis praegeri | G. praegeri | % | Zhang, Jijun | Counting | |
29 | Laticarinina pauperata | L. pauperata | % | Zhang, Jijun | Counting | |
30 | Valvulineria laevigata | V. laevigata | % | Zhang, Jijun | Counting | |
31 | Nuttallides umbonifera | N. umbonifera | % | Zhang, Jijun | Counting | |
32 | Hoeglundina elegans | H. elegans | % | Zhang, Jijun | Counting | |
33 | Epistominella exigua | E. exigua | % | Zhang, Jijun | Counting | |
34 | Eponides polius | E. polius | % | Zhang, Jijun | Counting | |
35 | Eponides tumidulus | E. tumidulus | % | Zhang, Jijun | Counting | |
36 | Eponides weddellensis | E. weddellensis | % | Zhang, Jijun | Counting | |
37 | Eponides sp. | Eponides sp. | % | Zhang, Jijun | Counting | genus questionable, sp. A |
38 | Discorbinella bertheloti | D. bertheloti | % | Zhang, Jijun | Counting | |
39 | Globocassidulina subglobosa | G. subglobosa | % | Zhang, Jijun | Counting | |
40 | Cassidulina laevigata | C. laevigata | % | Zhang, Jijun | Counting | |
41 | Cassidulina reniforme | C. reniforme | % | Zhang, Jijun | Counting | |
42 | Cassidulina sp. | Cassidulina sp. | % | Zhang, Jijun | Counting | |
43 | Cassidulinoides tenuis | C. tenuis | % | Zhang, Jijun | Counting | |
44 | Foraminifera, benthic indeterminata | Foram benth indet | % | Zhang, Jijun | Counting | unidentified rotaliids |
45 | Uvigerina peregrina | U. peregrina | % | Zhang, Jijun | Counting | |
46 | Uvigerina proboscidea | U. proboscidea | % | Zhang, Jijun | Counting | |
47 | Uvigerina sp. | Uvigerina sp. | % | Zhang, Jijun | Counting | |
48 | Rectuvigerina spp. | Rectuvigerina spp. | % | Zhang, Jijun | Counting | |
49 | Trifarina angulosa | T. angulosa | % | Zhang, Jijun | Counting | |
50 | Ehrenbergina trigona | E. trigona | % | Zhang, Jijun | Counting | |
51 | Bulimina alazanensis | B. alazanensis | % | Zhang, Jijun | Counting | |
52 | Bulimina tessellata | B. tessellata | % | Zhang, Jijun | Counting | |
53 | Bulimina sp. | Bulimina sp. | % | Zhang, Jijun | Counting | |
54 | Globobulimina auriculata | G. auriculata | % | Zhang, Jijun | Counting | |
55 | Robertinoides charlottensis | R. charlottensis | % | Zhang, Jijun | Counting | |
56 | Bolivina pygmaea | B. pygmaea | % | Zhang, Jijun | Counting | |
57 | Bolivina pygmaea | B. pygmaea | % | Zhang, Jijun | Counting | cf. species |
58 | Bolivina pseudoplicata | B. pseudoplicata | % | Zhang, Jijun | Counting | |
59 | Bolivina pseudothalmanni | B. pseudothalmanni | % | Zhang, Jijun | Counting | |
60 | Bolivina simplex | B. simplex | % | Zhang, Jijun | Counting | |
61 | Bolivina pseudopunctata | B. pseudopunctata | % | Zhang, Jijun | Counting | |
62 | Bolivina lowmani | B. lowmani | % | Zhang, Jijun | Counting | |
63 | Bolivina inflata | B. inflata | % | Zhang, Jijun | Counting | |
64 | Bolivina cf. alata | B. cf. alata | % | Zhang, Jijun | Counting | cf. species |
65 | Bolivina spp. | Bolivina spp. | % | Zhang, Jijun | Counting | |
66 | Nodosaria sp. | Nodosaria sp. | % | Zhang, Jijun | Counting | |
67 | Fursenkoina fusiformis | F. fusiformis | % | Zhang, Jijun | Counting | |
68 | Pleurostomella spp. | Pleurostomella spp. | % | Zhang, Jijun | Counting | |
69 | Stilostomella spp. | Stilostomella spp. | % | Zhang, Jijun | Counting | |
70 | Dentalina communis | D. communis | % | Zhang, Jijun | Counting | |
71 | Guttulina sp. | Guttulina sp. | % | Zhang, Jijun | Counting | |
72 | Oolina spp. | Oolina spp. | % | Zhang, Jijun | Counting | |
73 | Lagena spp. | Lagena spp. | % | Zhang, Jijun | Counting | |
74 | Fissurina spp. | Fissurina spp. | % | Zhang, Jijun | Counting | |
75 | Quinqueloculina seminulum | Q. seminulum | % | Zhang, Jijun | Counting | |
76 | Quinqueloculina sp. | Quinqueloculina sp. | % | Zhang, Jijun | Counting | |
77 | Pyrgo spp. | Pyrgo spp. | % | Zhang, Jijun | Counting | |
78 | Sigmoilina tenuis | S. tenuis | % | Zhang, Jijun | Counting | |
79 | Tosaia hanzawai | T. hanzawai | % | Zhang, Jijun | Counting | |
80 | Cornuspirella diffusa | C. diffusa | % | Zhang, Jijun | Counting | |
81 | Foraminifera, benthic indeterminata | Foram benth indet | % | Zhang, Jijun | Counting | unidentified serial forms |
82 | Karreriella bradyi | K. bradyi | % | Zhang, Jijun | Counting | |
83 | Martinottiella communis | M. communis | % | Zhang, Jijun | Counting | |
84 | Siphotextularia sp. | Siphotextularia sp. | % | Zhang, Jijun | Counting | |
85 | Trochammina squamata | T. squamata | % | Zhang, Jijun | Counting | cf. species |
86 | Trochammina sp. | Trochammina sp. | % | Zhang, Jijun | Counting | sp. W |
87 | Cyclammina cancellata | C. cancellata | % | Zhang, Jijun | Counting | |
88 | Ammotium sp. | Ammotium sp. | % | Zhang, Jijun | Counting | sp. A |
89 | Recurvoides sp. | Recurvoides sp. | % | Zhang, Jijun | Counting | |
90 | Haplophragmoides sp. | Haplophragmoides sp. | % | Zhang, Jijun | Counting | |
91 | Miliammina fusca | M. fusca | % | Zhang, Jijun | Counting | |
92 | Ammobaculites sp. | Ammobaculites sp. | % | Zhang, Jijun | Counting | |
93 | Sigmoilopsis schlumbergeri | S. schlumbergeri | % | Zhang, Jijun | Counting | |
94 | Sigmoilopsis sp. | Sigmoilopsis sp. | % | Zhang, Jijun | Counting | |
95 | Spiroplectammina sp. | Spiroplectammina sp. | % | Zhang, Jijun | Counting | |
96 | Lagenammina sp. | Lagenammina sp. | % | Zhang, Jijun | Counting | |
97 | Psammosphaera spp. | Psammosphaera spp. | % | Zhang, Jijun | Counting | |
98 | Saccammina sp. | Saccammina sp. | % | Zhang, Jijun | Counting | |
99 | Rhizammina spp. | Rhizammina spp. | % | Zhang, Jijun | Counting | |
100 | Dendrophrya sp. | Dendrophrya sp. | % | Zhang, Jijun | Counting | |
101 | Bigenerina sp. | Bigenerina sp. | % | Zhang, Jijun | Counting | genus questionable |
102 | Glomospira sp. | Glomospira sp. | % | Zhang, Jijun | Counting | |
103 | Reophax sp. | Reophax sp. | % | Zhang, Jijun | Counting | |
104 | Textularia sp. | Textularia sp. | % | Zhang, Jijun | Counting | |
105 | Ammodiscus sp. | Ammodiscus sp. | % | Zhang, Jijun | Counting | |
106 | Vulvulina spinosa | V. spinosa | % | Zhang, Jijun | Counting | |
107 | Foraminifera, benthic agglutinated indeterminata | Foram benth agg ind | % | Zhang, Jijun | Counting |
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Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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