The authorSimon Wellings
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- On Deep time and dead things in the wall:Traces of glacial ice and water:
- Metageologist: Thanks Daff, You’ve slightly anticipated where I’m going next. Got any good pics I... (20 days 17 hours ago)
- Daf: Lovely stuff Si – and many of these features can be recognized in what is now the marine... (20 days 23 hours ago)
- Metageologist: Andrew Zolnai has a great post with some actual data. Taking records from captains logs over... (25 days 19 hours ago)
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Based on a work at all-geo.org.
Category Archives: tectonics
Sedimentary basins have been described as ‘tape recorders’ that preserve evidence of past events. Some sedimentary basins contain ‘recordings’ of grand tectonic events – plate collisions and mountain building. The information is stored as subtle but compelling patterns in the … Continue reading →
I clearly remember the most important moment of my geological career. I was resting my back on a glacially-polished wall of gabbro, my feet in an Irish bog, talking to myself in the sunshine. As a young man with bushy hair … Continue reading →
Structural geologists seek to understand how rocks have changed shape, in order to better understand wider processes such as how mountains are formed. Sometimes they use a terminology called ‘Deformation-numbers’ which I will now explain via a series of pretty … Continue reading →
Ever since the plate tectonic paradigm-shift of the 1960s, geologists have strived to understand ancient rocks in terms of the movements of plates. The geology of north-western Ireland can be explained by what happened when a subduction zone ran out … Continue reading →