ML138444
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Media notes
Subject 1: (Interview). Subtitle: Tony Coates, Jeremy Jackson. Timecode In: 00:00:09. Timecode out: 00:25:35. Notes: Geology; Paleobiology. Subject 2: (Environmental Recording). Subtitle: Walking through river. Timecode In: 00:25:35. Timecode out: 00:31:00. Subject 3: (Interview). Subtitle: Tony Coates, Jeremy Jackson. Timecode In: 00:32:30. Timecode out: 00:48:30. Notes: Geology; Paleoecology. Habitat: River. Equipment Notes: Stereo=1; Decoded MS stereo; Sennheiser MKH40 Cardioid Mid Mic and MKH30 Bidirectional Side Mic. NPR/National Geographic RADIO EXPEDITIONS "Oceans of Life" PANAMA Logs Darien DAT # 3 MS -stereo -Sennheiser 40 & 30 Day Hike: Tony and Jeremy at work by the river -very hot good tape of Tony Coates digging and talking about fossil work. Work is right by the river so it's quite a prominent sound in the background. 0:00:51 -FX -River Ambi plus walking along in the rocks .... ** 0:01:32 TC -Clear off the top of the bed and I need a surface on which I can place my board. Then I get out my brunt and compass, and the way a geologist figures out which way the rocks are dipping is to measure first of all a line across the board that is horizontal and then by definition the line that is at right angles going down hill from that horizontal line will be the direction in which the stratum is dipping most steeply....and that's by convention the direction and then the inclination that you measure to orient the bed in space.....so here the bed is dipping downhill at its maximum in the direction of 160 degrees... and then when I put my compass over that, it's dipping at 15 degrees ..... so I write on my map 15 over 160, and that will tell any other geologist looking at the map the orientation in space of the rocks that we're dealing with here.......so in fact I was wrong, the rocks are young to the east and getting older to the west .....Let me have a look at one of these *FX....hammering..... *Now you can see when I knock a piece off the color is quite different inside the rock than out, and you can in fact see that there are lots of little fossils in there, little white specks that turn out to be small pieces of shell, which is encouraging because we can out of here some microscopic plankton....and these are the things we can use to date the rocks (3:52) And this looks a volcanic sandstone... So I'm going to note down the kind of rock I have and the orientation in space, and then we'll just consistently do this as we go down the river.....Now because these rivers are very poorly mapped..... so what I will do now as well as recording the kind of rock and its orientation, I will now measurethe direction of the river for the next couple of hundred meters, and I'll start to make my own map, so I can plot it out from my notebook and overlay it on the original map, and that way I will have a more precise understanding of where our individual samples are coming from ....... {more re specifics of mapping). start moving down the section, see how the rocks change and seeing whether any of the other beds in the sequence have more and better preserved fossils. (5:45) FX -5:46 -more walking through rocks and hammering............... TC: .................the coarseness of these sands and the inter-bedded nature of these conglomerates tells us that we're in an environment lying very closely offshore from a volcanic arc...........walking on....back into sands again..................walk about 40 yards to next bed that will underly these.......... FX -walking -TC and JJ off mic FX 11:16 -Walking, Indians talking...... **JJ: There's little bits of curly shell allover in it. **TC: Do you think it's worth getting a micro? Oh that's quite a bit finer..... ***Oh it's got plankton in it. The planktic foraminifera, these are the ones that when they were alive floated near the surface, and they are the ones that are the most... (Notes truncated)
Technical information
- Recorder
- SONY TCD-D7
- Microphone
- Sennheiser MKH 30; Sennheiser MKH 40
- Accessories
Archival information
- Cataloged
- 11 Feb 2005 - Ben Brotman
- Digitized
- 10 Feb 2005 - Ben Brotman
- Edited
- 11 Feb 2005 - Ben Brotman