Siberian Flood Basalt Collection

Below is a list of our current rock collection. For more information regarding any sample below, please contact ltelkins@dtm.ciw.edu.

Sample # Region Description Unit or Rock type Latitude Longitude Bulk Analysis Completed Thin Section
A10-4.3 Angara Middle of fine-grained flaggy mafic rock with cpx striking 55 dipping 14 Sill (lava?) 58.902767 102.291917 No No
A10-4.4 Angara Mafic fine-grained dike 0.6 m thickness Dike 58.902767 102.291917 No Yes
A10-4.5 Angara Spherulitic lower layer of weathered "sill"; also ~20 cm bomb Sill 58.902767 102.291917 No No
A10-4.6 Angara Cpx-rich flow beneath 4.3 Sill 58.902767 102.291917 No Yes
A10-4.7 Angara White sandstone lens Sandstone 58.902767 102.291917 No No
A10-4.8 Angara Limestone with columnar stromatolites from block Limestone 58.902767 102.291917 No No
A10-5.1 Angara Grey/tan bedded (?) tuff, ~5 m up from waterline Tuff 58.900861 102.297639 No Yes
A10-5.2 Angara Blocky tuff right next to coals, ~10 m above waterline Tuff 58.900861 102.297639 No Yes
A10-5.3 Angara White sample of block 40 x 10 cm, ~20 m above waterline Tuff 58.900861 102.297639 No No
A10-6.1 Angara Dike ~ 500m downstream of A10-4.1 Dike 58.897194 102.310639 No Yes
A10-7.1 Angara Tuff with large stromatolitic blocks, also small river pebbles Tuff 58.878050 102.371217 No Yes
A10-7.2 Angara Sandstone clast in tuff Sandstone 58.878050 102.371217 No No
A10-7.3 Angara Mafic clast in tuff, from clast-rich bed in tuff Mafic igneous rock 58.878050 102.371217 No Yes
A10-7.4 Angara Silty laminated white clast lying horizontally in 7.1 Sedimentary clast 58.878050 102.371217 No No
A10-7.5 Angara Laminated mudstone clast in tuff, core and rind Sedimentary clast 58.878050 102.371217 No No
A10-7.6 Angara Stromatolitic limestone clast in tuff, core and rind Sedimentary clast 58.878050 102.371217 No No
A10-7.7 Angara Tuff sample from 1-3 cm-thick layer 1 m along strike in 7.1 Tuff 58.878050 102.371217 No No
A10-7.8 Angara Tuff ~300 m east (upstream) of the 7.1 site, massive, more matrix than clasts, no visible bedding, ~10 m above waterline Tuff 58.878050 102.371217 No Yes
A10-8.1 Angara Clast-poor tuff with some ls and volcanics Tuff 58.822517 102.534250 No Yes
A10-8.2 Angara Mafic clast in tuff, sample at waterline of 35 m height outcrop Mafic clast 58.822517 102.534250 No Yes
A10-8.3 Angara Tuff matric with many small lithic fragments and very few large ones, 50 m upstream of 8.2, 200 m upstream of 8.1 Tuff 58.822517 102.534250 No Yes
A10-8.4 Angara Small dike with chill margin Dike 58.822517 102.534250 No Yes
A10-8.5 Angara Mafic intrusive at ~20 m above waterline, very finegrained, surrounded by highly metasomatized tuff Mafic igneous rock 58.822517 102.534250 No No
A10-8.6 Angara Tuff ~100 m upstream of 8.5, ~300 m upstream of 8.4 Tuff 58.822517 102.534250 No No
A10-9.1 Angara Sandstone dike filled with woody pieces Sandstone 58.810389 102.563222 No No

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