CP1 P-51 well (345-470m) (Oligocene of Canada)

Where: Nova Scotia, Canada (43.8° N, 60.6° W: paleocoordinates 43.1° N, 54.2° W)

When: Oligocene (33.9 - 23.0 Ma)

Environment/lithology: marine; silty lithology not reported

• Relatively large amounts of silt and sand were present in most samples, with the typical clay content exceeding 50% only in the lowermost 100 m or so. Above that, washing usually only reduced the dry weights by 10 to 35%. The upper 200 m contained large amounts of sand-sized clastics, whereas farther down

•the sands tended to be replaced by silts.

Size class: microfossils

Collection methods: Each sample was oven dried, then weighed. Weights ranged from 100 to over 600g, but most were between 200 and 400 g. No presoaking in any detergent or other chemical was required, as all the samples were unconsolidated. The samples were

•washed through a stack of sieves, the top sieve with a 1.700 mm opening, the middle sieve with a 0.250 mm opening and a bottom sieve with a 0.063 mm opening. The residue was later dried and weighed, and a 5 to 60 g subsample of the 0.250 to 1.700 mm size fraction was set aside for palynological analysis.

Primary reference: F. Thomas. 1994. Cenozoic micropaleontological biostratigraphy of the LASMO/NSR(V)L Cohasset Producer CP1 P-51 well, Scotian Shelf. Atlantic Geology 30(2):113-121 [M. Uhen/R. McClees-Funinan]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 141891: authorized by Mark Uhen, entered by Ricardo McClees-Funinan on 02.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

  - Chilostomellidae
 Chilostomellacea - Alabaminidae
 Rotaliina - Stilostomellidae
 Planorbulinacea - Cibicididae
 Planorbulinacea - Planulidae
Planulina sp. d'Orbigny 1826
 Buliminacea - Buliminidae
Bulimina sp. d'Orbigny 1826
Robertina sp. d'Orbigny 1846
 Rotaliacea - Rotaliidae
 Nonionacea - Nonionidae
Melonis barleeanum Williamson 1858
 Globigerinaceae - Globigerinidae
 Globigerinaceae - Globorotaliidae
 Globigerinina - Heterohelicidae
 Ataxophragmiacea - Globotextulariidae
Arenobulimina sp. Cushman 1927
 Textulariina - Verneuilinidae
 Textulariacea - Valvulinidae
Karreriella sp. Cushman 1933
 Nodosariacea - Nodosariidae
 Nodosariacea - Ellipsolagenidae
Oolina sp. d'Orbigny 1839
 Miliolida - Cornuspiridae