CP1 P-51 well (180-230m) (Miocene to of Canada)

Where: Nova Scotia, Canada (43.8° N, 60.6° W: paleocoordinates 43.8° N, 57.4° W)

When: Early/Lower Miocene to Early/Lower Miocene (23.0 - 5.3 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 141888: authorized by Mark Uhen, entered by Ricardo McClees-Funinan on 02.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

  - Chilostomellidae
Sphaeroidina bulloides d'Orbigny 1826
 Rotaliina - Stilostomellidae
 Rotaliina - Cassidulinidae
 Planorbulinacea - Cibicididae
 Planorbulinacea - Planulidae
 Buliminacea - Uvigerinidae
 Buliminacea - Buliminidae
 Discorbacea - Rosalinidae
Rosalina sp. d'Orbigny 1826
 Rotaliacea - Rotaliidae
Gyroidina sp. d'Orbigny 1826
 Nonionacea - Nonionidae
 Rotaliina - Bolivinidae
 Globigerinaceae - Globigerinidae
 Globigerinaceae - Globorotaliidae
 Nodosariacea - Polymorphinidae
Guttulina sp. d'Orbigny 1839
Guttulina problema d'Orbigny 1826
Sigmomorphina sp. Cushman and Ozawa 1928
Pseudopolymorphina sp. Cushman and Ozawa 1928
 Nodosariacea - Nodosariidae
Scaphopoda sp. Bronn 1862 tusk shell
 Miliolida - Spiroloculinidae