Shatter cones and planar deformation features confirm Santa Marta in Piauí State, Brazil, as an impact structure

2014 ◽  
Vol 49 (10) ◽  
pp. 1915-1928 ◽  
Author(s):  
Grace Juliana Gonçalves de Oliveira ◽  
Marcos Alberto Rodrigues Vasconcelos ◽  
Alvaro Penteado Crósta ◽  
Wolf Uwe Reimold ◽  
Ana Maria Góes ◽  
...  
Keyword(s):  
Impact Structure ◽  
Planar Deformation ◽  
Deformation Features ◽  
Shatter Cones ◽  
Planar Deformation Features

scholarly journals The Keurusselkä impact structure, Finland-Impact origin confirmed by characterization of planar deformation features in quartz grains

2010 ◽  
Vol 45 (3) ◽  
pp. 434-446 ◽  
Author(s):  
Ludovic FERRIÈRE ◽  
Selen RAISKILA ◽  
Gordon R. OSINSKI ◽  
Lauri J. PESONEN ◽  
Martti LEHTINEN
Keyword(s):  
Impact Structure ◽  
Planar Deformation ◽  
Deformation Features ◽  
Planar Deformation Features ◽  
Impact Origin ◽  
Quartz Grains

scholarly journals Non-luminescent nature of the planar deformation features in shocked quartz from the Ries impact structure, Germany: A new interpretation

2015 ◽  
Vol 58 (3) ◽  
pp. 217-229 ◽  
Author(s):  
Arnold Gucsik ◽  
Tasuku Okumura ◽  
Hirotsugu Nishido ◽  
Ildikó Gyollai ◽  
Kiyotaka Ninagawa ◽  
...  
Keyword(s):  
Impact Structure ◽  
Planar Deformation ◽  
Deformation Features ◽  
Shocked Quartz ◽  
New Interpretation ◽  
Planar Deformation Features

scholarly journals Geological investigation of the central portion of the Santa Marta impact structure, Piauí State, Brazil

2017 ◽  
Vol 47 (4) ◽  
pp. 673-692 ◽  
Author(s):  
Grace Juliana Gonçalves de Oliveira ◽  
Marlei Antônio Carrari Chamani ◽  
Ana Maria Góes ◽  
Alvaro Penteado Crósta ◽  
Marcos Alberto Rodrigues Vasconcelos ◽  
...  
Keyword(s):  
Central Area ◽  
Sedimentary Basins ◽  
Northeastern Brazil ◽  
Impact Structure ◽  
Impact Cratering ◽  
Geological Investigation ◽  
Widespread Occurrence ◽  
Deformation Features ◽  
Shatter Cones ◽  
Planar Deformation Features

ABSTRACT: Santa Marta is a 10 km wide, reasonably well preserved, complex impact structure located in southwestern Piauí state, northeastern Brazil, with a central uplift of 3.2 km diameter. The Santa Marta structure was recently recognized as the sixth confirmed impact structure in Brazil, based on widespread occurrence of shatter cones and the presence of shock deformation features in quartz. The latter includes planar deformation features (PDF), planar fractures (PF), and feather features (FF). The structure was formed in sedimentary strata (conglomerates, sandstones, siltstones and shales) accumulated in two distinct sedimentary basins that overlap in this region: the Paleozoic Parnaíba and the Mesozoic Sanfranciscan basins. Here, we provide an overview of the geology and stratigraphy of the sedimentary successions that occur within the structure, focusing especially on the deformation aspects of the strata from the central area. This study is aimed at advancing the knowledge about Brazilian impact structures and contributing to a better comprehension of impact cratering in sedimentary targets. The deformation in the Santa Marta structure is directly related to variations in the thickness of sedimentary strata and to lithologic diversity in the interior of the structure, which determined the complexity of the deformation, including the formation of inner rings.

scholarly journals Fast deformation of shocked quartz and implications for planar deformation features observed in shocked quartz

2020 ◽  
Author(s):  
Toshimori Sekine ◽  
Tomoko Sato ◽  
Norimasa Ozaki ◽  
Kohei Miyanishi ◽  
Ryosuke Kodama ◽  
...  
Keyword(s):  
Planar Deformation ◽  
Deformation Features ◽  
Shocked Quartz ◽  
Planar Deformation Features

Planar deformation features in quartz from impact-produced polymict breccia of the Xiuyan crater, China

2011 ◽  
Vol 46 (5) ◽  
pp. 729-736 ◽  
Author(s):  
Ming CHEN ◽  
Christian KOEBERL ◽  
Wansheng XIAO ◽  
Xiande XIE ◽  
Dayong TAN
Keyword(s):  
Planar Deformation ◽  
Deformation Features ◽  
Planar Deformation Features

Planar Deformation Features in Quartz from the Ries Impact Crater: Advanced by Micro-Raman Spectroscopy

2011 ◽  
Vol 44 (7-8) ◽  
pp. 469-473 ◽  
Author(s):  
Arnold Gucsik ◽  
Tasuku Okumura ◽  
Masahiro Kayama ◽  
Hirotsugu Nishido ◽  
Kiyotaka Ninagawa
Keyword(s):  
Raman Spectroscopy ◽  
Impact Crater ◽  
Planar Deformation ◽  
Micro Raman Spectroscopy ◽  
Deformation Features ◽  
Planar Deformation Features ◽  
Ries Impact Crater
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