8 Questions 34 Answers 0 Followers
Questions related from G. G. J. Ernst
Hello, The Zr melt concentrations in the Laacher See Magma Reservoir have been estimated by Hans Schmincke and coworkers to be in the range of hundreds of ppm (ULST), O(1000ppm) (MLST) and around...
31 December 2015 2,653 22 View
Hello everyone, The Laacher See complex plinian explosive volcanic eruption (12.9 ky BP, East Eifel Volcanic Field, Germany) appears to be unique in having erupted both representative portions of...
30 December 2015 5,781 8 View
Hello everyone, I asked a previous question as to whether dense ash aggregates (or "acc-laps") have ever been made in any wind tunnel lab thus far in their fully formed sub-spherical or...
02 October 2015 3,968 10 View
Hello everyone, I am wondering if a definite answer has now been provided to this question. One issue is that hydrothermal vent fields have a lifetime of the order of 10,000 years (eg. TAG)...
29 September 2015 7,229 4 View
Hello, I guess we have all heard about the ongoing tragic and worsening situation in Greece since 2008 for a large fraction of the population there and for refugees from Europe and elsewhere who...
15 September 2015 617 6 View
Hello everyone, My question relates to ash aggregation and so-called accretionary lapilli (dense ash aggreegates). These have been documented from fieldwork by various researchers including...
09 September 2015 2,848 5 View
Hello everyone, The Santorini active volcano complex together with the Soufrière Hills Volcano (Montserrat) is arguably one of the most extensively documented active volcanoes on the...
02 September 2015 860 5 View
Many years back, I attended a special session on Elves, Sprites and Blue Jets at AGU in San Francisco. These are typically observed above severe thunderstorm clouds and are observed at something...
28 August 2015 4,463 2 View
