Ron is posting a sequence of pictures of rocks on his desk (“Deskcrops”) and today’s struck a chord. I first went to Gore Mt. on a mineralogy trip in 1997 on one of those typical northern New England / New York spring days. We had sun, rain, snow, and cloudy conditions during at [...]
Archive for March, 2010
Reaction post – Gore Mt.
Posted in Uncategorized, tagged field trips, garnets, Gore Mt. on March 31, 2010 | Leave a Comment »
Mount St. Helens Reawakens: The Thirtieth Anniversary
Posted in Uncategorized on March 31, 2010 | Leave a Comment »
A magnitude 4.2 earthquake 30 years ago this past Saturday marked the reawakening of Mount St. Helens after 123 years of inactivity and set the stage for the most destructive eruption in U.S. history. March 31, 1980, both craters enlarged as explosions continued. A change in wind direction brought ash to the Kelso-Longview area by [...]
Lavafall
Posted in Uncategorized on March 29, 2010 | 2 Comments »
…Just thought I would share this amazing picture. Magma pours down a snow-capped mountain in Iceland after a recent volcanic eruption.
Aftershocks Still Felt After The 1811/1812 New Madrid Earthquakes
Posted in Uncategorized on March 28, 2010 | Leave a Comment »
This article was written over a year ago, however I recently stumbled upon it and thought it was quite interesting. Most of the small earthquakes that occur in central U.S. are actually aftershocks of the bigger earthquakes that occured in the New Madrid seismic zone that hit the Midwest back in 1811 and 1812. In [...]
Structural Geology of the Elizabeth
Posted in Uncategorized on March 26, 2010 | Leave a Comment »
This paper talks about the structural geology project being carried out in British Columbia. The principal objectives of the program were to provide guidance on the structural and geological controls on the distribution of gold mineralisation and to produce a predictive structural model to support targeting efforts. In strike-slip vein systems (both sinistral and dextral) [...]
Volcano Erupts Underneath Eyjafjallajokull Glacier
Posted in Uncategorized on March 24, 2010 | 1 Comment »
Yes, that is the glaciers real name. Hundreds of people were evacuated Sunday March 21st amid flood concerns after a long-dormant volcano erupted beneath a glacier in south Iceland. It was the first time since 1821 that the volcano under the Eyjafjallajokull glacier has erupted. (Eyjafjallajokull is about 100 miles (160 kilometers) east of the [...]
Photomicrograph Monday returns…
Posted in Uncategorized on March 22, 2010 | Leave a Comment »
As mentioned previously, I went on a post-conference field trip that involved a transect from the Blue Ridge in VA to the Valley & Fold belt in West Virginia. Callan originally live-blogged both days (end of day 2) and is now working his way through several synthesis posts, so I’m going to leave the [...]
Update from the road
Posted in Uncategorized, tagged field trips on March 17, 2010 | Leave a Comment »
Sorry for the silence from me, but various things have kept me busy. I’m currently on a field trip in VA, which would also be a reason not to blog. But Callan Bentley is much more energetic than I and is actually live-blogging our trip! Day one is here: http://mountainbeltway.wordpress.com/2010/03/17/transect-trip-13-a-better-plume/ (the extra credit on Monday’s [...]
Slowly Slip-Sliding Faults Don’t Cause Earthquakes
Posted in Uncategorized on March 16, 2010 | 1 Comment »
http://www.sciencedaily.com/releases/2009/08/090828103942.htm
South American Cities Moved by Chile’s 8.8 Earthquake
Posted in Uncategorized on March 15, 2010 | Leave a Comment »
The massive magnitude 8.8 earthquake that struck the west coast of Chile last month moved the entire city of Concepcion at least 10 feet to the west, and shifted other parts of South America as far apart as the Falkland Islands and Fortaleza, Brazil. These preliminary measurements, produced from data gathered by researchers from four [...]
