40Ar/39Ar age of the Lake Saint Martin impact structure (Canada) – Unchaining the Late Triassic terrestrial impact craters

• Published in: Earth and planetary science letters Vol. 406; pp. 37 - 48
• Main Authors: Schmieder, Martin, Jourdan, Fred, Tohver, Eric, Cloutis, Edward A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.11.2014
• Subjects: 40Ar/39Ar dating; Age; Chains; Craters; Earth; impact melting; Impact melts; K-feldspar; Lake Saint Martin; Lakes; Melts; multiple impact event; Rock; Triassic; Canada, Manitoba; impact melting; Lake Saint Martin; Triassic; K-feldspar; 40Ar/39Ar dating; multiple impact event

New 40Ar/39Ar dating of impact-melted K-feldspars and impact melt rock from the ∼40 km Lake Saint Martin impact structure in Manitoba, Canada, yielded three plateau ages and one mini-plateau age in agreement with inverse isochron ages for the K-feldspar melt aliquots and a minimum age for a whole-ro...