Nastapoka arc
The Nastapoka arc is a geological feature located on the southeastern shore of Hudson Bay, Canada. It is a near-perfect circular arc, covering more than 160° of a 450-km-diameter circle. Due to its shape, the arc was long suspected as the remnant of an ancient impact crater. However, studies have cast doubt on this. In August 1972, Robert S. Dietz and J. Paul Barringer conducted an extensive search of much of the Nastapoka arc with First Nations and Inuit canoes and fishing boats in an investigation of its impact origin. They examined the abundant and extensive rock exposures that occur within the region of the Nastapoka arc and found a complete lack of shatter cones, suevite-type or other unusual melt rocks, pseudotachylite or mylonite, radial faults or fractures, unusual injection brecci
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Nastapoka arc
The Nastapoka arc is a geological feature located on the southeastern shore of Hudson Bay, Canada. It is a near-perfect circular arc, covering more than 160° of a 450-km-diameter circle. Due to its shape, the arc was long suspected as the remnant of an ancient impact crater. However, studies have cast doubt on this. In August 1972, Robert S. Dietz and J. Paul Barringer conducted an extensive search of much of the Nastapoka arc with First Nations and Inuit canoes and fishing boats in an investigation of its impact origin. They examined the abundant and extensive rock exposures that occur within the region of the Nastapoka arc and found a complete lack of shatter cones, suevite-type or other unusual melt rocks, pseudotachylite or mylonite, radial faults or fractures, unusual injection brecci
has abstract
Arco de Nastapoka (Nastapoka a ...... nada confirmam estas teorias.
@pt
El Arco de Nastapoka es un acc ...... queado de una placa tectónica.
@es
L'arc Nastapoka est une partic ...... de 450 kilomètres de diamètre.
@fr
The Nastapoka arc is a geologi ...... rocks of the Superior Craton.
@en
Дуга Настапока (англ. Nastapok ...... анс-Гудзонова горообразования.
@ru
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Wikipage page ID
18,148,439
Wikipage revision ID
736,108,818
subject
hypernym
point
56.833333333333336 -78.33333333333333
type
comment
Arco de Nastapoka (Nastapoka a ...... nada confirmam estas teorias.
@pt
El Arco de Nastapoka es un acc ...... queado de una placa tectónica.
@es
L'arc Nastapoka est une partic ...... de 450 kilomètres de diamètre.
@fr
The Nastapoka arc is a geologi ...... ures, unusual injection brecci
@en
Дуга Настапока (англ. Nastapok ...... анс-Гудзонова горообразования.
@ru
label
Arc Nastapoka
@fr
Arco de Nastapoka
@es
Arco de Nastapoka
@pt
Nastapoka arc
@en
Дуга Настапока
@ru
lat
5.6833333333e+1
long
-7.8333333333e+1