Citation:

j.marmicro.2009.06.006

Name: (Appendix A) Campanian-Maastrichtian calcareous nannofossils in DSDP Hole 44-390A
Published: 2009
License: https://creativecommons.org/licenses/by/3.0/

Always quote citation above when using data! You can download the citation in several formats below.

RIS Citation BibTeX Citation Text Citation Facebook TwitterShow Map Google Earth

Abstract:

The latest Cretaceous (Campanian–Maastrichtian) is characterized by several global cooling and intermittent warming events. These climatic changes influenced the palaeoceanography substantially, including changes of the deep water sources and surface water currents. One of the most prominent episodes of climatic cooling occurred during the Campanian–Maastrichtian transition. This study focuses on the palaeoclimate and palaeoceanography of the Campanian–Maastrichtian transition by analysing the calcareous nannofossils of DSDP Hole 390A (139.92–126.15 mbsf; Blake Nose). For the examination of calcareous nannofossils sixty samples were processed using the settling technique. Biostratigraphical index taxa (Broinsonia parca constricta, Uniplanarius trifidus, and Tranolithus orionatus) suggest a late Campanian age for the major part of the studied section. The calcareous nannofossils are well preserved, highly abundant (6.80 billion specimens/gram sediment) and diverse (80 species/sample). The assemblages are dominated by Prediscosphaera spp. (20.5%), Watznaueria spp. (20.3%) and Retecapsa spp. (9.8%). Cool water taxa (Ahmuellerella octoradiata, Gartnerago segmentatum, and Kamptnerius magnificus), however, appear less frequently and do not exceed more than 1%. Due to their rarity these cool water taxa do not support the existence of an intense cooling phase during the Campanian–Maastrichtian transition at DSDP Hole 390A. Around 133 mbsf several nannofossil taxa, however, show a distinctive turnover. Mesotrophic species like Discorhabdus ignotus, Zeugrhabdotus bicrescenticus and Zygodiscus exmouthiensis are abundant below 133 mbsf, whereas oligotrophic taxa like Watznaueria spp., Eiffellithus spp. and Staurolithites flavus become common above this level. These changes imply a decrease in the input of nutrients, perhaps caused by a reorganization of ocean currents (Palaeo Gulf Stream) and reduced upwelling.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Latitude: 30.142300 * Longitude: -76.112300

Date/Time Start: 1975-08-29T00:00:00 * Date/Time End: 1975-08-29T00:00:00

Minimum DEPTH, sediment/rock: 126.15 m * Maximum DEPTH, sediment/rock: 139.92 m

Event(s):

44-390A * Latitude: 30.142300 * Longitude: -76.112300 * Date/Time: 1975-08-29T00:00:00 * Elevation: -2665.0 m * Penetration: 142.5 m * Recovery: 86.3 m * Location: North Atlantic * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 133 m cored; 0 m drilled; 64.9 % recovery

Comment:

Sediment depth is given im mbsf. <1 = present.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Sample code/label	Sample label		Linnert, Christian	DSDP/ODP/IODP sample designation
2	DEPTH, sediment/rock	Depth sed	m			Geocode
3	Nannofossils	Nannos	10⁶ #/g	Linnert, Christian	Random settling technique; Geissen et al. (1999)
4	Diversity, simple	Diversity simp		Linnert, Christian	Random settling technique; Geissen et al. (1999)
5	Shannon Diversity Index	H'		Linnert, Christian	Random settling technique; Geissen et al. (1999)
6	Evenness of species	E		Linnert, Christian	Random settling technique; Geissen et al. (1999)
7	Nannofossils	Nannos	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)	specimens
8	Nannofossils	Nannos	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)	determinable
9	Amphizygus brooksii	A. brooksii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
10	Amphizygus cf. brooksii	A. cf. brooksii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
11	Ahmuellerella octoradiata	A. octoradiata	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
12	Ahmuellerella regularis	A. regularis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
13	Arkhangelskiella cymbiformis	A. cymbiformis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
14	Broinsonia parca constricta	B. parca constricta	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
15	Broinsonia signata	B. signata	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
16	Biscutum dissimile	B. dissimile	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
17	Biscutum ellipticum	B. ellipticum	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
18	Biscutum magnum	B. magnum	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
19	Biscutum melaniae	B. melaniae	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
20	Biscutum notaculum	B. notaculum	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
21	Braarudosphaera bigelowii	B. bigelowii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
22	Bukrylithus ambiguus	B. ambiguus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
23	Calculites obscurus	C. obscurus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
24	Ceratolithoides brevicorniculans	C. brevicorniculans	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
25	Ceratolithoides indiensis	C. indiensis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
26	Ceratolithoides cf. kamptneri	C. cf. kamptneri	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
27	Ceratolithoides longissimus	C. longissimus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
28	Ceratolithoides prominens	C. prominens	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
29	Ceratolithoides self-trailiae	C. self-trailiae	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
30	Ceratolithoides sp.	Ceratolithoides sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
31	Chiastozygus amphipons	C. amphipons	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
32	Chiastozygus antiquus	C. antiquus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
33	Chiastozygus bifarius	C. bifarius	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
34	Chiastozygus litterarius	C. litterarius	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
35	Chiastozygus synquadriperforatus	C. synquadriperforatus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
36	Chiastozygus trabalis	C. trabalis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
37	Corollithion completum	C. completum	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
38	Corollithion exiguum	C. exiguum	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
39	Corollithion madagaskarensis	C. madagaskarensis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
40	Corollithion signum	C. signum	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
41	Cretarhabdus conicus	C. conicus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
42	Cribrocorona gallica	C. gallica	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
43	Cribrosphaerella ehrenbergii	C. ehrenbergii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
44	Cyclagelosphaera reinhardtii	C. reinhardtii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
45	Cylindralithus nieliae	C. nieliae	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
46	Cylindralithus sculptus	C. sculptus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
47	Cylindralithus serratus	C. serratus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
48	Discorhabdus ignotus	D. ignotus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
49	Eiffellithus eximius	E. eximius	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
50	Eiffellithus gorkae	E. gorkae	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
51	Eiffellithus turriseiffelii	E. turriseiffelii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
52	Eprolithus sp.	Eprolithus sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
53	Flabellites oblongus	F. oblongus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
54	Gartnerago segmentatum	G. segmentatum	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
55	Gorkaea obliqueclausus	G. obliqueclausus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
56	Grantarhabdus coronadventis	G. coronadventis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
57	Helicolithus trabeculatus	H. trabeculatus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
58	Kamptnerius magnificus	K. magnificus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
59	Lapideacassis sp.	Lapideacassis sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
60	Lithraphidites carniolensis	L. carniolensis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
61	Lithraphidites praequadratus	L. praequadratus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
62	Lucianorhabdus cayeuxii	L. cayeuxii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
63	Manivitella pemmatoidea	M. pemmatoidea	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
64	Markalius inversus	M. inversus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
65	Marthasterites sp.	Marthasterites sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
66	Micrantholithus quasihoschulzii	M. quasihoschulzii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
67	Microrhabdulus decoratus	M. decoratus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
68	Micula concava	M. concava	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
69	Micula decussata	M. decussata	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
70	Micula swastica	M. swastica	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
71	Micula sp.	Micula sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
72	Miravetesina bergenii	M. bergenii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
73	Misceomarginatus pleniporus	M. pleniporus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
74	Palaeopontosphaera sp.	Palaeopontosphaera sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
75	Perchnielsenella stradneri	P. stradneri	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
76	Pervilithus varius	P. varius	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
77	Petrarhabdus vietus	P. vietus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
78	Petrobrasiella bownii	P. bownii	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
79	Placozygus fibuliformis	P. fibuliformis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
80	Placozygus fibuliformis	P. fibuliformis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)	large
81	Prediscosphaera cretacea	P. cretacea	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
82	Prediscosphaera grandis	P. grandis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
83	Prediscosphaera majungae	P. majungae	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
84	Prediscosphaera microrhabdulina	P. microrhabdulina	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
85	Prediscosphaera spinosa	P. spinosa	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
86	Prediscosphaera sp.	Prediscosphaera sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)	small
87	Prediscosphaera spp.	Prediscosphaera spp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
88	Prolatipatella multicarinata	P. multicarinata	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
89	Quadrum gartneri	Q. gartneri	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
90	Reinhardtites levis	R. levis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
91	Retecapsa angustiforata	R. angustiforata	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
92	Retecapsa crenulata	R. crenulata	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
93	Retecapsa ficula	R. ficula	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
94	Retecapsa schizobrachiata	R. schizobrachiata	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
95	Retecapsa surirella	R. surirella	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
96	Retecapsa spp.	Retecapsa spp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
97	Rhagodiscus angustus	R. angustus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
98	Rhagodiscus indistinctus	R. indistinctus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
99	Rhagodiscus reniformis	R. reniformis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
100	Rhagodiscus splendens	R. splendens	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
101	Rhomboaster sp.	Rhomboaster sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)	genus questionable
102	Rotelapillus biarcus	R. biarcus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
103	Rucinolithus hayi	R. hayi	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
104	Rucinolithus sp.	Rucinolithus sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
105	Scapholithus fossilis	S. fossilis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
106	Staurolithites ellipticus	S. ellipticus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
107	Staurolithites flavus	S. flavus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
108	Staurolithites mielnicensis	S. mielnicensis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
109	Staurolithites mutterlosei	S. mutterlosei	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
110	Tegumentum stradneri	T. stradneri	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
111	Tetrapodorhabdus decorus	T. decorus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
112	Tranolithus orionatus	T. orionatus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
113	Tranolithus minimus	T. minimus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
114	Tubodiscus sp.	Tubodiscus sp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)	large
115	Uniplanarius gothicus	U. gothicus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
116	Uniplanarius trifidus	U. trifidus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
117	Watznaueria barnesiae	W. barnesiae	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
118	Watznaueria biporta	W. biporta	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
119	Watznaueria fossacincta	W. fossacincta	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
120	Watznaueria ovata	W. ovata	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
121	Watznaueria spp.	Watznaueria spp.	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
122	Zeugrhabdotus bicrescenticus	Z. bicrescenticus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
123	Zeugrhabdotus embergeri	Z. embergeri	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
124	Zeugrhabdotus erectus	Z. erectus	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
125	Zeugrhabdotus noeliae	Z. noeliae	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
126	Zeugrhabdotus sigmoides	Z. sigmoides	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
127	Zygodiscus exmouthiensis	Z. exmouthiensis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)
128	Zygodiscus tunisiensis	Z. tunisiensis	#	Linnert, Christian	Random settling technique; Geissen et al. (1999)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

7620 data points

Download Data

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

View dataset as HTML (shows only first 2000 rows)