You are browsing the archive for accretionary wedge Archives - Magma Cum Laude.
16 July 2013
Signs you may be a geologist (Accretionary Wedge #58)
I don’t get out for field work much anymore (in fact my entire summer has been reserved for thesis writing – grr!), but Evelyn’s call for the July Accretionary Wedge is a good chance for me to look back on past field trips and reminisce. Geologists come across a lot of signs when they do field work, and volcanologists in particular get some doozies. I had a hard time deciding on just one, so I’ve got several offerings for the Wedge, all of them from the two trips I’ve taken to Hawaii.
22 April 2013
Remembering to be small: Accretionary Wedge #56
As geologists, we spend a lot of time looking for the big picture. We want to know how a mountain range formed, or where tectonic plates were millions of years ago, or what global repercussions an eruption could have, or what effect the melting of an ice sheet could have on sea level around the world. We think about time in boggling spans that far exceed anything we could experience in a single lifetime – millions, even billions of years. And we are always trying to tell far-reaching stories to explain the history of our planet, using words and figures and photos.
14 February 2013
Love (of fieldwork) hurts! Accretionary Wedge #55)
Maitri’s hosting this month’s Accretionary Wedge, and she’s asking us to share our battle scars (or “geo-injuries”). For some reason, this struck me as an excellent topic to talk about on Valentine’s day, so instead of showing you photos of heart-shaped lava fountains or volcanic bombs, I’m getting into the real bloody side of field work.
1 November 2012
High Magmafication: Geopoetry, Accretionary Wedge #51
I’m cutting it close this time, I know – today is the deadline for Geosphere’s Accretionary Wedge call for posts on Geopoetry. One of my favorite books is a slim little volume called “A Geological Miscellany”. It’s a collection of geology-related letters, stories, poems and prose reaching back all the way to Pliny, and it has some hilarious excerpts. One of my favorites is a poem that’s attributed to the Pick and Hammer Club of the USGS…okay, actually a song…okay, actually a song set to a very ear-wormy tune from 1950 called ‘Music, Music, Music’.
21 September 2012
Field memories (Accretionary Wedge #50)
Evelyn of Georneys is hosting this month’s Accretionary Wedge, and has asked us for fun field memories. Looking back on all the field trips I’ve taken, I have quite a few, but I think the one that still sticks in my memory is my first visit to a volcano, ever. I’m pretty sure I didn’t find it hugely funny at the time (you’ll find out why), but in retrospect I always find myself laughing at…well, myself.
28 August 2012
Danny Krysak: An out-of-this-world geologist (Accretionary Wedge #49)
For this month’s Accretionary Wedge, Dana Hunter over at En Tequila Es Veridad suggests that, in honor of the Mars Science Laboratory (and the rover Curiosity) making a successful landing on the Red Planet, we should talk about exogeology! Well, exogeologists, I’ve got a real treat for you. You know those photos that we all tweet and blog and comment on and drool over when they come down from Curiosity’s cameras? Well, I’ve got an interview with one of the camera team who is, quite literally, the first person on Earth to see some of those photos – Danny Krysak!
30 June 2012
Accretionary Wedge #47: Nostalgia for notetaking
Jennifer at Fuzzy Science is hosting this month’s Accretionary Wedge, and this time we’re talking about field notes. For me, this is a pretty nostalgic discussion, since I haven’t been out do to field work for my own research since 2010. I’ve been on field trips since then, certainly, but notetaking sometimes gets sidelined in favor of other trip activities when you’re not doing it for work or research. Also, my research right now involves a lot of time dealing with computer simulations, so I still take lab notes, but they’re not like recording a field experience.
22 February 2012
“Magnificent column of smoke” (Accretionary Wedge #43 Entry)
My choice of favorite geologic illustration, for Accretionary Wedge # 43, comes from a book that geobloggers (and others) have written about in the past: Sir William Hamilton’s Campi Phlegraei, Observations on the Volcanoes of the Two Sicilies. I won’t repeat all the background about Hamilton, who was a British natural historian who observed eruptions of Mount Vesuvius in the 1760s and 1770s. Campi Phlegraei, a three-part work, contained wonderful descriptions of the volcanoes and eruptions of Naples and Sicily, including the 1779 eruption of Mount Vesuvius (discussed and illustrated in a supplement to the first two volumes).
25 January 2012
Rocks in the kitchen (Accretionary Wedge #42 Entry)
Ian Saginor of Volcanoclast is hosting the next Accretionary Wedge, and it should be a neat one: we’re supposed to explore the geology of the indoors – specifically, countertops. Here’s the challenge:
Have you seen a great countertop out there? Sure, everyone says it’s “granite”, but you know better. Take a picture, post it on your own blog or send it to me and I’ll post it for you. Do you think you know what it is or how it was formed? Feel free to include your own interpretation and I’m sure others will enjoy joining in the discussion. Ron Schott suggested that we expand the entries by including any decorative stone material that has been separated by humans from it’s source. This includes buildings, statues, etc. There’s a lot of really unusual stuff out there, so make sure to find a good one.
21 December 2011
Accretionary Wedge #41: Geology in progress
Ron Schott is hosting Accretionary Wedge #41, and he’s asking us to do a little reminiscing:
Right, then. Your mission, should you choose to accept it, is to relate the story of the most memorable or significant geological event that you’ve directly experienced.
What we seek for AccretionaryWedge #41 is an account of a geologic event that you experienced firsthand. It could be an earthquake, a landslide, a flood, a volcanic eruption, etc. (but don’t feel compelled to stick to the biggies – weathering, anyone?) – some geologic process that you were able to directly observe and experience.