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Snowball Earth Rare Rock Specimen

Snowball Earth Rare Rock Specimen NEW
Snowball Earth Rare Rock Specimen NEW
Item# JPT-61198
Regular price: $165.00
Sale price: $125.00
Availability: Usually ships the next business day
This item is out-of-stock.

Product Description

Snowball Earth Rare Rock Specimen NEW
Snowball Earth Rare Rock Specimen Large,New

Espanola Formation Specimen

The Huronian Supergroup (where the sample is taken, about 2.5 Ga) is from an area that is one of the best-exposed Paleoproterozoic successions in the world. Large-scale glaciations occurred during the Neoproterozoic and the Paleoproterozoic.

The snowball Earth hypothesis (Kirschvink-1992) is based on paleomagnetic studies. In the case of the Neoproterozoic snowball earth events, glacial diamictites are directly overlain by carbonate rocks. These carbonate rocks are called cap carbonates and are considered to represent post-glacial warming events. The specimen has been involved in 3 cycles, with each cycle involving the following diamictite: the Ramsay Lake Formation; the Bruce Formation; and the Gowganda Formation, in ascending order. These possibly correlate with the Makganyene diamictite in South Africa.

Size: 2 1/8" L X 1 5/8" W X 5/8" D Extremely rare and exceptional specimen.

Guaranteed Authentic.

Ships in a specimen display box with information, tag and COA authenticity. Stands and cube not included.

A copy of the scientific paper on "Carbon Isotope Study of the Espanola Formation, Huronian Supergroup, Canada included!