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Smit, J; van Kempen, Th MG (1987): (Table 1) Distribution of planktonic foraminifera in the Paleocene/Cretaceous section of DSDP Hole 93-605 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.251286, Supplement to: Smit, J; van Kempen, TMG (1987): Planktonic foraminifers from the Cretaceous/Tertiary boundary at Deep Sea Drilling Project Site 605, North Atlantic. In: van Hinte, JE; Wise, SW Jr; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 93, 549-553, https://doi.org/10.2973/dsdp.proc.93.112.1987

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Abstract:
Analysis of planktonic foraminifers from Section 605-66-1 established the Cretaceous/Tertiary (K/T) boundary between 68 and 73 cm. Comparison with the detailed zonation established at El Kef, Tunisia, indicates that some of the section may be missing, probably because of drilling disturbance. The preservation of the planktonic foraminifers is generally good, particularly in the basal Paleocene section. However, extensive dissolution and the many broken specimens render quantitative estimates unreliable. There were no microtektite-like spherules to suggest a layer rich in extraterrestrial components, as have been found in most complete pelagic K/T boundary sections. The better preservation of Paleocene foraminiferal test in this core and in many other DSDP cores from other basins is probably due to a change in oceanic carbonate chemistry exactly at the K/T boundary. This may have been caused by a temporary and almost complete disappearance of carbonate-fixing organisms at the boundary.
Related to:
DSDP (1989): Data from the Deep Sea Drilling Project. Sediment, hard rock and reference files. National Geophysical Data Center, National Environmental Satellite, Data and Information Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce, 1, CD-ROM
Further details:
Paleontology data base - background and methods
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 38.742200 * Longitude: -72.609200
Date/Time Start: 1983-06-11T00:00:00 * Date/Time End: 1983-06-11T00:00:00
Minimum DEPTH, sediment/rock: 759.35 m * Maximum DEPTH, sediment/rock: 759.84 m
Event(s):
93-605 * Latitude: 38.742200 * Longitude: -72.609200 * Date/Time: 1983-06-11T00:00:00 * Elevation: -2194.0 m * Penetration: 816.7 m * Recovery: 532 m * Location: North Atlantic * Campaign: Leg93 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 69 cores; 652.8 m cored; 9.6 m drilled; 81.5 % recovery
Comment:
D = dissolved, P = present, C = common, ? = questionable, - = absent.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Sample code/labelSample labelSmit, JDSDP/ODP/IODP sample designation
2 DEPTH, sediment/rockDepth sedmGeocode
3 EpochEpochSmit, J
4 Globotruncana sp.Globotruncana sp.Smit, J
5 Globotruncana arcaG. arcaSmit, J
6 Globotruncana elevataG. elevataSmit, J
7 Globotruncana fornicataG. fornicataSmit, J
8 Globotruncana contusaG. contusaSmit, J
9 Globotruncana stuartiG. stuartiSmit, J
10 Globotruncana falsostuartiG. falsostuartiSmit, J
11 Rugoglobigerina sp.Rugoglobigerina sp.Smit, J
12 Rugoglobigerina rugosaR. rugosaSmit, J
13 Trinitella scottiT. scottiSmit, J
14 Globotruncanella caravacaensisG. caravacaensisSmit, J
15 Globotruncanella havanensisG. havanensisSmit, J
16 Globotruncanella monmouthensisG. monmouthensisSmit, J
17 Globotruncanella petaloideaG. petaloideaSmit, J
18 Globigerinelloides asperaG. asperaSmit, J
19 Globigerinelloides messinaeG. messinaeSmit, J
20 Planoglobulina sp.Planoglobulina sp.Smit, J
21 Racemiguembelina fructicosaR. fructicosaSmit, J
22 Pseudotextularia sp.Pseudotextularia sp.Smit, J
23 Heterohelix sp.Heterohelix sp.Smit, J
24 Abathomphalus intermediusA. intermediusSmit, J
25 Abathomphalus mayaroensisA. mayaroensisSmit, J
26 Guembelitria cretaceaG. cretaceaSmit, J
27 Chiloguembelina midwayensisC. midwayensisSmit, J
28 Chiloguembelina sp.Chiloguembelina sp.Smit, J
29 Eoglobigerina editaE. editaSmit, J
30 Eoglobigerina sp.Eoglobigerina sp.Smit, J
31 Globigerina pseudobulloidesG. pseudobulloidesSmit, J
32 Globigerina triloculinoidesG. triloculinoidesSmit, J
33 Planorotalites compressusP. compressusSmit, J
34 Globoconusa daubjergensisG. daubjergensisSmit, J
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
264 data points

Data

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

1 
Sample label		2 
Depth sed [m]		3 
Epoch		4 
Globotruncana sp.		5 
G. arca		6 
G. elevata		7 
G. fornicata		8 
G. contusa		9 
G. stuarti		10 
G. falsostuarti		11 
Rugoglobigerina sp.		12 
R. rugosa		13 
T. scotti		14 
G. caravacaensis		15 
G. havanensis		16 
G. monmouthensis		17 
G. petaloidea		18 
G. aspera		19 
G. messinae		20 
Planoglobulina sp.		21 
R. fructicosa		22 
Pseudotextularia sp.		23 
Heterohelix sp.		24 
A. intermedius		25 
A. mayaroensis		26 
G. cretacea		27 
C. midwayensis		28 
Chiloguembelina sp.		29 
E. edita		30 
Eoglobigerina sp.		31 
G. pseudobulloides		32 
G. triloculinoides		33 
P. compressus		34 
G. daubjergensis
93-605-66-1,24-26759.35Paleocene----------------------CCCCCCCPP
93-605-66-1,53-55759.64Paleocene----------------------CCCCCCC--
93-605-66-1,64-66759.75Paleocene----------------------CCCCCCC-P
93-605-66-1,67-68759.78Paleocene-----------P---P------CPCCCCPPP
93-605-66-1,73-74759.84PaleoceneDD??DD?DD--D--PC-DCC--C--------
93-605-66-1,75-79CretaceousCP?-PC-CPPPCP-CC--CCPPP--------
93-605-66-1,92-95CretaceousC----?-PP--P--PCP-CC--P--------
93-605-66-1,136-140CretaceousCPpPPPPPC-PCPPCCPPCC--P--------