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Basaltic Dike at Rodderberg Volcano (Bonn, Germany)
Posted by: Groundspeak Premium Member KateBum
N 50° 38.975 E 007° 11.326
32U E 371955 N 5612423
Quick Description: A Basaltic Dike at Rodderberg Volcano near Bonn, Germany.
Location: Nordrhein-Westfalen, Germany
Date Posted: 7/17/2009 11:06:30 PM
Waymark Code: WM6TDF
Published By: Groundspeak Premium Member RakeInTheCache
Views: 62

Long Description:
Rodderberg Volcano
About 500.000 years ago, hot magma rose from deeper regions. When it reached ground water close to surface, it came to an immense phreatic eruption which formed the maar crater, nowadays about 50 m deep. The crater is approx. 800 m in diameter and is still well visible from the aerial perspective. About 300,000 years later the Rodderberg awoke once more to life. This time with a series of slag eruptions. An especially well visible report of one of these later eruptions is a column full with lava, that forced its way into slag deposits in the northern pit. The slag was degraded and the basaltic dike persisted by reason of its bigger hardness. It can still be admired in this place.
Waymark is confirmed to be publicly accessible: yes

Parking Coordinates: N 50° 38.670 E 007° 11.290

Access fee (In local currency): .00

Requires a high clearance vehicle to visit.: no

Requires 4x4 vehicle to visit.: no

Public Transport available: yes

Website reference: [Web Link]

Visit Instructions:
No specific requirements, just have fun visiting the waymark.
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