Corehole UAL-2, sample R4071 I (Paleocene of Pakistan)

Where: Sindh, Pakistan (25.7° N, 68.1° E)

• Paleocoordinates: 11.4° S, 65.7° E (Wright 2013)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Bara Formation (Ranikot Group), Paleocene (66.0 - 56.0 Ma)

Environment/lithology: terrestrial; sandstone and siltstone

• The Bara Formation appears to represent largely nonmarine to brackish-water deposition.
• It consists mainly of sandstone, siltstone, shale and coal. The detrital strata are varyingly calcareous, glauconitic, burrowed, and shelly.

Size class: microfossils

Preservation: original sporopollenin

Collected by GPS and USGS

Collection methods: core, chemical, hydrochloric, hydroflouric

• Investigation by the Geological Survey of Pakistan (GPS) and the U.S. Geological Survey (USGS).

•"The samples were processed using normal palynological techniques of HCl; HF; HNO3; short centrifugation with soapy water to remove fines; heavy liquid separation using a ZnCl2 liquid of 1.8 s.g.; staining with Bismarck brown; and screening on 10 µm sieves. Thes residues were mounted in glycerine jelly."

Primary reference: N. Frederiksen. 1990. Palynological contribution to geologic mapping of coal-bearing upper Paleocene rocks in the lower Indus coal region, Pakistan. Open-File Report 90-243:43more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 237101: authorized by Phillip Jardine, entered by Hannah Morck on 19.11.2024

Creative Commons license: CC0 (CC0)

Taxonomic list

unclassified
  -
Angiospermae
 Mesangiosperms - Arecaceae
unclassified
  -
Angiospermae
 Mesangiosperms - Arecaceae
 Sapindales - Sapindaceae
 Mesangiosperms - Araceae
Retitrescolpites
  -
Retistephanocolpites
  -
Angiospermae
 Proteales - Proteaceae
Echitriporites trianguliformis van Hoeken-Klinkenberg 1964
 Sapindales - Sapindaceae
Cupanieidites "sp. A" Cookson and Pike 1954 soapberry
Psilodiporites hammenii
  -
Psilodiporites hammenii Varma and Rawat 1963