| Description |
|---|
| Material: | Not Provided |
| Classification: | Not Provided |
| Field Name: | Not Provided |
| Description: | This rock dredge consists of slabs of indurated lutite (claystone) mixed with a few igneous cobbles. The rocks were taken from the walls of a small canyon. During dredging operations the dredge was towed down one wall and up the oppisite one. The claystone can be seen in the pictures taken at camera station #15. In these pictures it is shown overlain by compact, ripple-marked sediment, probably silty lutite, many of the claystone fragments recovered show a fresh unaltered surface which makes a 90° angle with the top and bottom surfaces. There can be little doubt that many of these pieces were broken off outcrops. The claystone is colored dark green, light green and light yellowish-brown. Some of the fragments of claystone are represented in all. The largest fragment measures 69x47x15 cm. and the smallest 7x5.3x3 cm. The largest pieces are the light yellowish-brown variety. All of these are flat and tabular. On their darker weathered surfaces they exhibit worm holes, calcareous worm tubes, and calcareous algal growth. The darker green variety is siltier and less firm than the others it resembles the 16-90 cm. layer in V18-96 a core taken close by. Sponge spicules are present in the rock. The light green variety of claystone contains forams, broken pelecypod shells, coral and echnoid spines. These claystones are also flat and tabular, but they are smaller than the large light yellowish-brown claystone slabs. The average thickness is 6 cm. One piece measures 29x16x6 cm. and another 32x27x6 cm. on the surfaces of these fragments are found worm holes, calcareous worm tubes, algal growths, and bryozoans. Another fragment has a size of 35x21x7 cm. This shows both light green and light yellowish-brown colors. The contact is quite clear between them. Most of the burrows occur on the light green side, suggesting that this color overlies the other. Sponge spicules occur in the light yellowish-brown claystones. |
| Age (min): | Not Provided |
| Age (max): | Not Provided |
| Collection Method: | Dredging |
| Collection Method Description: | Not Provided |
| Size: | Not Provided |
| Geological Age: | Not Provided |
| Geological Unit: | Not Provided |
| Comment: | Not Provided |
| Purpose: | Not Provided |
| Geolocation |
|---|
| Latitude Start (WGS84): | -55.475 |
| Latitude End: | Not Provided |
| Longitude Start (WGS84): | -65.9416 |
| Longitude End: | Not Provided |
| Northing (m) (UTM NAD83): | Not Provided |
| Easting (m) (UTM NAD83): | Not Provided |
| Zone: | Not Provided |
| Vertical Datum: | Not Provided |
| Elevation Start: | -1966 meters |
| Elevation End: | -1719 meters |
| Nav Type: | Not Provided |
| Physiographic Feature: | Drake Passage E. of Wollaston Is. |
| Name Of Physiographic Feature: | Not Provided |
| Location Description: | Not Provided |
| Locality: | Not Provided |
| Locality Description: | Not Provided |
| Country: | Not Provided |
| State/Province: | Not Provided |
| County: | Not Provided |
| City: | Not Provided |
| Collection |
|---|
| Field Program/Cruise: | VM0018 |
| Platform Type: | Ship |
| Platform Name: | Vema |
| Platform Description: | Not Provided |
| Launch Type: | Not Provided |
| Launch Platform Name: | Not Provided |
| Launch ID: | Not Provided |
| Collector/Chief Scientist: | Not Provided |
| Collector/Chief Scientist Detail: | Not Provided |
| Collection Start Date: | 1962-03-15 |
| Collection End Date: | Not Provided |
| Curation |
|---|
| Current Archive: | Lamont-Doherty Core Repository at Columbia University (LDCR) |
| Current Archive Contact Details: | Nichole Anest, peridote@ldeo.columbia.edu |
| Original Archive: | Not Provided |
| Original Archive Contact Details: | Not Provided |
| Related Samples |
|---|
Parents: | No Parents | | Siblings: | No Siblings |
| Children: | No Children |
