Santa Marta crater

Location of the crater in Brazil

Impact crater/structure
Confidence| Confirmed
Diameter| 10 km (6.2 mi)
Age| ~66-100 Ma
Late Cretaceous
Exposed| Yes
Drilled| No
Location
Location| Parnaíba Basin
Coordinates|  [ ⚑ ] : 10°10′S 45°15′W﻿ / ﻿10.167°S 45.25°W﻿ / -10.167; -45.25
Country| Brazil
State| Piauí

Santa Marta crater is a newly confirmed impact crater in Piauí State, northeastern Brazil .[1] It is 10 kilometres (6.2 mi) in diameter and it is estimated to have formed between 100 and 66 Ma, during the Late Cretaceous.

## Description

Its impact origin was first proposed by S. Master and J. Heymann in 2000 based primarily on satellite remote sensing data[2] and was confirmed more than a decade later after conclusive evidence of shock metamorphism such as breccia and shatter cones were found.[3]

## See also

* Umm al Binni lake

## References

1. ↑ "Santa Marta". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. http://www.passc.net/EarthImpactDatabase/New website_05-2018/SantaMarta.html. Retrieved 2017-10-09.
2. ↑ Master, S.; Heymann, J (2000). A Possible New Impact Structure near Gilbués in Piauí Province, Northeastern Brazil, Meteoritics & Planetary Science, vol. 35, Supplement, p.A105
3. ↑ A. P. Crósta and M. A. Vasconcelos (2013). Confirmation Of The Impact Origin Of The Santa Marta Crater, Brazil, 76th Annual Meteoritical Society Meeting

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Impact cratering on Earth

* Impact crater
* Impact event

Lists|

* Worldwide
* Africa
* Antarctica
* Asia
* Australia
* Europe
* North America
* South America
* By country

Confirmed

≥20 km diameter|

* Acraman
* Amelia Creek
* Araguainha
* Beaverhead
* Boltysh
* Carswell
* Charlevoix
* Chesapeake Bay
* Chicxulub
* Clearwater East & West
* Gosses Bluff
* Haughton
* Kamensk
* Kara
* Karakul
* Keurusselkä
* Lappajärvi
* Logancha
* Manicouagan
* Manson
* Mistastin
* Mjølnir
* Montagnais
* Morokweng
* Nördlinger Ries
* Obolon'
* Popigai
* Presqu'île
* Puchezh-Katunki
* Rochechouart
* Saint Martin
* Shoemaker
* Siljan Ring
* Slate Islands
* Steen River
* Strangways
* Sudbury
* Tookoonooka
* Tunnunik
* Vredefort
* Woodleigh
* Yarrabubba

Topics|

* Alvarez hypothesis
* Australite
* Breccia
* Coesite
* Complex crater
* Cretaceous–Paleogene boundary
* Cryptoexplosion
* Ejecta blanket
* Impact crater
* Impact structure
* Impactite
* Late Heavy Bombardment
* Lechatelierite
* Meteorite
* Moldavite
* Ordovician meteor event
* Philippinite
* Planar deformation features
* Shatter cone
* Shock metamorphism
* Shocked quartz
* Stishovite
* Suevite
* Tektite

Research|

* Baldwin, Ralph Belknap
* Barringer, Daniel
* Barringer Medal
* Chao, Edward C T
* Dietz, Robert S
* Hartmann, William K
* Melosh, H Jay
* Ryder, Graham
* Schultz, Peter H
* Shoemaker, Eugene
* Earth Impact Database
* Impact Field Studies Group
* Lunar and Planetary Institute
* Traces of Catastrophe

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