Nickel und Kobalt in Gesteinen des Nördlinger Ries

✍ Scribed by Volker Stähle

• Publisher: Springer
• Year: 1970
• Tongue: English
• Weight: 831 KB
• Volume: 28
• Category: Article
• ISSN: 0010-7999
• DOI: 10.1007/bf00389229

✦ Synopsis

Ni and Co have been determined in glass bombs from the suevite and crystalline rocks from different breccia outcrops in the Ries crater. The glasses contain 10.0--51.5 ppm Ni (average of 70 analyses: 30.1 ppm Ni) and 4.8--15.8 ppm Co (average of 50 analyses: 12.I ppm Co). Highest contents of Ni and Co are to be found in non-recrystallized and chemically unchanged bombs of type I. Crystalline rocks from the basement contain 2.5--140 ppm Ni (22 analyses) and 2.2--29.8 ppm Co (22 analyses).

The Co-contents of non-recrystallized glasses are rather uniform (10.7--15.8 ppm) and as high as those of crystalline rocks of similar content of Mg0, MgO @ FeO-4-F%Os and SiQ. The Ni-contents of non-recrystallized glasses are inhomogeneously scattered over a larger range (30.0--51.5 ppm). On the average, they are higher than those of crystalline rocks with similar contents of MgO, MgO d-FeO d-F%03 and SiO~. The maximum difference is 25 ppm Ni.