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Gateway to the Paleobiology Database
Fajas Verdes I y II (Paleocene to of Argentina)

Where: Salta, Argentina (25.8° S, 65.2° W: paleocoordinates 28.4° S, 54.3° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Lumbrera Formation (Salta Group), Late/Upper Paleocene to Late/Upper Paleocene (58.7 - 48.6 Ma)

Environment/lithology: fluvial-lacustrine; lithified, red marl

• Lumbrera Formation begins with a general rejuvenation of the source areas, installing a markedly continental regime, developing a floodplain environment presenting a sequence of mudstones, marl and red sandstone, which was interrupted by the Green Belts, these belts would have accumulated a fluvio-lacustrine environment.
• Lumbrera Formation consists of top to bottom:

•8 m. Micaceous sandstone with color pink to white.

•201 m. red marl, finely stratified.

•22.56 m. GREEN BELT II. Claystones alternating dark blue to black, fetid and bituminous with remains of fish and insects, with green and black siltstones, sandstones and thin limestone bank (0.50m).

•57 m. red marl with fine stratification fragmented.

•9.42 m. GREEN BELT I: Alternating gray calcareous sandstones and purple and green sandstones with claystones and siltstones green and gray.

•70 m. red marl.

•10 m. reddish sandstone.

Size class: microfossils

Preservation: soft parts, original sporopollenin

Collection methods: chemical,

Primary reference: M. Quattrocchio. 1978. Contribución al conocimiento de la Palinología Estratigráfica de la Formación Lumbrera (Terciario Inferior, grupo Salta). Ameghiniana XV(3-4):285-300 [C. Jaramillo/J. Ceballos/J. Moreno] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 136214: authorized by Carlos Jaramillo, entered by Juliana Ceballos on 23.11.2012, edited by Jessica Moreno

Creative Commons license: CC BY (attribution)