Kofelsite Glass Impactite
The glass-bearing rocks from Koefels, Tyrol, have been petrologically examined and have been found to contain lechatelierite and feldspar glasses. Geological tests indicate that temperatures were present far above those common for igneous processes at the time of formation, to form the kofelsite. The presence of the tomorphic quartz, maskelynite and multiple sets of planar features in quartz and feldspars strongly indicates shock metamorphism. At present these features can only be explained by a meteoritic impact origin of the “Köfelsite” and the Köfels structure.
Other theories have been presented as to the process of its formation. A different interpretation of how the kofelsite was formed gives rise to the idea that such temperatures and deformation can be produced through the action of an extreme landslide. Landslides events are known to occur throughout the world and the friction generated between static and moving rocks can create enough heat to fuse rocks to form "frictionite" or hyalomylonite. Extreme events in mountain relief destruction in the Himalayas, India, are a good example of this.
Sturzstroms (German for "fall stream") are a unique kind of landslide that creates great horizontal and vertical drop. The rock and soil of this material flows similarly to that of glaciers, lavas, and mudflows. Such geological actions have been found on other bodies in the Solar System, particularly Mars, Venus, Io, Phobos and the Moon.
More research is needed to finalize whether or not the combination of some geological events such as landslide, earthquake and vertical shifting is enough to produce lechatelierite, feldspar glasses, and planarally deformed quartz. It is also entirely plausible that such giant landslide events could have been triggered by meteoritic impact(s).
Possible new evidence: For over 150 years scientists have tried to solve the mystery of a controversial cuneiform clay tablet that indicates the so-called Köfel’s impact event was observed in ancient times. In the late 19th century a circular stone-cast tablet was recovered from the 650 BC underground library of King Ashurbanipal in Nineveh, which later came to be called “the Planisphere." The cuneiform tablet in the British Museum collection No. K8538 and is thought to be evidence for the existence of sophisticated Sumerian astronomy. Archaeological circles went wild, as they re-translated the cuneiform text and asserted the tablet records an ancient asteroid strike, the Köfels’ Impact, which struck Austria sometime around 3100 BC.
The giant landslide located at Köfels, in Austria, is 500m thick and five kilometres in diameter and has long been a mystery since geologists first looked at it in the 19th century. The conclusion drawn by research in the middle 20th century is that indeed it is due to a very large meteorite impact because of the evidence of crushing pressures and explosive heat.
Conclusion: It is very possible for a bolide, like the one that caused the Tunguska Event, to also trigger landslides events. The heat from the explosion evidently caused glass impactite to form, along with other verifiable materials as planar deformation features. This rare kofelsite material and its features indicate that it was produced by a meteorite impact event.
Specimen size: 57mm H X 35mm W X 11mm D
Ships with COA, information, display case, and tag stand. Acrylic stand and cube not included.
This material was obtained in a scientific materials trade with a geological institution.
FREE PRIORITY SHIPPING (2-3 days) IN THE USA!