tab delimited contribution id version timestamp contributor data_model_version reference lab_names 20714 1 2026-07-07T22:15:41.429Z @polarwander 3.0 10.1139/E72-080 Not Determined (For Legacy Datasets Only) >>>>>>>>>> tab delimited locations location sites location_type result_name result_type result_quality method_codes citations geologic_classes lithologies lat_s lat_n lon_w lon_e continent_ocean country age age_low age_high age_unit dir_tilt_correction dir_dec dir_inc dir_alpha95 dir_k dir_n_sites contact_test pole_lat pole_lon pole_alpha95 pole_k pole_n_sites description Western Channel Diabase, Great Bear Lake-west side, NWT 7:12mean:13:14mean:15:25:26A:26B:27:28:29mean:30:31mean:32:33:34:35:36:38:39:40:42:43:55:58:16:19:20mean:21:22:23:24:129:137:138 Region Western Channel Diabase ca. 1592 Ma pole a g LP-DIR-AF:LP-DIR-T:DE-FM:DE-VGP:DA-DIR-GEO:GM-UPB-CC:ST-C 10.1139/e72-080:10.1016/j.precamres.2010.06.009:10.1016/j.lithos.2018.06.002 Intrusive Diabase 66.03 66.64 241.95 242.44 North America Canada 1592 1589 1594.8 Ma 0 356.3 -50.4 4.2 33.8 35 C+ 9.2 245.5 4.3 32.3 35 Paleomagnetic pole for the ca. 1592 Ma Western Channel Diabase, a suite of diabase sheets (sills) and NNE-trending dikes of the Great Bear magmatic zone (Wopmay Orogen) that intrude the Cameron Bay and Echo Bay groups and the overlying Hornby Bay Group on the west side of Great Bear Lake, NWT, Canada (Irving et al., 1972). Pole is the Fisher mean of the VGPs of the 35 site means retained by Irving et al. (1972; sheets plus dikes); the reversed-polarity Port Radium sill (site 144) and the 16 subsumed sub-site rows are excluded from the mean. Directions are in geographic coordinates; the sheets and dikes are interpreted to not require tilt correction. A positive baked-contact test (baked country rock within ~0.5 m of contacts carries the diabase direction while distal rock does not) supports a primary, emplacement-age magnetization (ST-C). Age from U-Pb baddeleyite dating of WCD sheets (Hamilton and Buchan, 2010; Rogers et al., 2018). >>>>>>>>>> tab delimited sites site location result_type result_quality method_codes citations geologic_classes geologic_types lithologies lat lon age_low age_high age_unit dir_tilt_correction dir_dec dir_inc dir_k dir_n_samples vgp_lat vgp_lon description 7 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.36 242.39 1589 1594.8 Ma 0 352 -56 133.3 5 13 249 k calculated from R and N, sheets (sills) 12 Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.34 242.32 1589 1594.8 Ma 0 11 -60 66.7 3 k calculated from R and N, sheets (sills) [excluded: subsumed into site mean] 12c Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Extrusive Lava Flow Porphyritic Basalt 66.34 242.32 1589 1594.8 Ma 0 13 -63 200 3 k calculated from R and N, contact rock [excluded: subsumed into site mean] 12mean Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Intrusive:Extrusive Sill:Lava Flow Diabase:Porphyritic Basalt 66.34 242.32 1589 1594.8 Ma 0 12 -61 125 6 19 233 k calculated from R and N, mean 13 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.33 242.3 1589 1594.8 Ma 0 355 -53 66.7 3 10 246 k calculated from R and N, sheets (sills) 14 Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.34 242.28 1589 1594.8 Ma 0 355 -60 50 3 k calculated from R and N, sheets (sills) [excluded: subsumed into site mean] 14c Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Sedimentary Burnt Sediment Baked Sediment 66.34 242.28 1589 1594.8 Ma 0 348 -60 200 3 k calculated from R and N, contact rock [excluded: subsumed into site mean] 14mean Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Intrusive:Sedimentary Sill:Burnt Sediment Diabase:Baked Sediment 66.34 242.28 1589 1594.8 Ma 0 351 -60 100 6 18 249 k calculated from R and N, mean 15 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.35 242.26 1589 1594.8 Ma 0 3 -56 66.7 3 13 240 k calculated from R and N, sheets (sills) 25 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.24 242.34 1589 1594.8 Ma 0 355 -53 66.7 3 10 247 k calculated from R and N, sheets (sills) 26A Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.36 242.22 1589 1594.8 Ma 0 341 -63 15.4 3 22 256 k calculated from R and N, sheets (sills) 26B Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.36 242.22 1589 1594.8 Ma 0 337 -56 66.7 3 15 261 k calculated from R and N, sheets (sills) 27 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.39 242.44 1589 1594.8 Ma 0 5 -51 50 3 9 238 k calculated from R and N, sheets (sills) 28 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.38 242.36 1589 1594.8 Ma 0 348 -59 50 3 17 252 k calculated from R and N, sheets (sills) 29 Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.36 242.36 1589 1594.8 Ma 0 355 -59 66.7 3 k calculated from R and N, sheets (sills) [excluded: subsumed into site mean] 29c1a Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Sedimentary Burnt Sediment Baked Sediment 66.36 242.36 1589 1594.8 Ma 0 1 -62 3 k calculated from R and N, contact rock [excluded: subsumed into site mean] 29c1b Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Sedimentary Burnt Sediment Baked Sediment 66.36 242.36 1589 1594.8 Ma 0 356 -62 200 3 k calculated from R and N, contact rock [excluded: subsumed into site mean] 29c1c Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Sedimentary Burnt Sediment Baked Sediment 66.36 242.36 1589 1594.8 Ma 0 3 -60 200 3 k calculated from R and N, contact rock [excluded: subsumed into site mean] 29c2a Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Sedimentary Burnt Sediment Baked Sediment 66.36 242.36 1589 1594.8 Ma 0 8 -65 400 5 k calculated from R and N, contact rock [excluded: subsumed into site mean] 29c2b Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Sedimentary Burnt Sediment Baked Sediment 66.36 242.36 1589 1594.8 Ma 0 7 -56 200 5 k calculated from R and N, contact rock [excluded: subsumed into site mean] 29c2c Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Sedimentary Burnt Sediment Baked Sediment 66.36 242.36 1589 1594.8 Ma 0 9 -60 30.8 5 k calculated from R and N, contact rock [excluded: subsumed into site mean] 29mean Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Intrusive:Sedimentary Sill:Burnt Sediment Diabase:Baked Sediment 66.36 242.36 1589 1594.8 Ma 0 2 -62 100 11 20 241 k calculated from R and N, mean 30 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.35 242.34 1589 1594.8 Ma 0 318 -57 40 3 19 277 k calculated from R and N, sheets (sills) 31 Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.35 242.39 1589 1594.8 Ma 0 353 -52 250 6 k calculated from R and N, sheets (sills) [excluded: subsumed into site mean] 31c Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Sedimentary Burnt Sediment Baked Sediment 66.35 242.39 1589 1594.8 Ma 0 336 -51 16.7 5 k calculated from R and N, contact rock [excluded: subsumed into site mean] 31mean Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Intrusive:Sedimentary Sill:Burnt Sediment Diabase:Baked Sediment 66.35 242.39 1589 1594.8 Ma 0 345 -52 33.3 11 10 255 k calculated from R and N, mean 32 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.33 242.18 1589 1594.8 Ma 0 2 -56 200 3 13 241 k calculated from R and N, sheets (sills) 33 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.34 242.2 1589 1594.8 Ma 0 357 -67 50 3 26 244 k calculated from R and N, sheets (sills) 34 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.37 242.05 1589 1594.8 Ma 0 357 -36 200 3 -3 245 k calculated from R and N, sheets (sills) 35 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.42 242.12 1589 1594.8 Ma 0 4 -53 200 3 10 239 k calculated from R and N, sheets (sills) 36 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.41 242.13 1589 1594.8 Ma 0 16 -75 33.3 3 38 233 k calculated from R and N, sheets (sills) 38 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.39 242.12 1589 1594.8 Ma 0 1 -52 40 3 9 241 k calculated from R and N, sheets (sills) 39 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.38 242.11 1589 1594.8 Ma 0 5 -56 200 3 14 238 k calculated from R and N, sheets (sills) 40 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.37 242.14 1589 1594.8 Ma 0 352 -69 200 3 29 248 k calculated from R and N, sheets (sills) 42 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.37 242.38 1589 1594.8 Ma 0 344 -49 8 3 7 256 k calculated from R and N, sheets (sills) 43 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.36 242.39 1589 1594.8 Ma 0 355 -44 100 3 3 247 k calculated from R and N, sheets (sills) 55 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.64164204 242.2000159 1589 1594.8 Ma 0 351 -40 33.3 3 -1 251 k calculated from R and N, sheets (sills) 58 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.64164204 242.1000159 1589 1594.8 Ma 0 359 -48 28.6 3 6 243 k calculated from R and N, sheets (sills) 16 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.32 242.35 1589 1594.8 Ma 0 358 -49 40 3 7 244 k calculated from R and N, dikes, western channel dikes and contact rocks 19 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.29 242.31 1589 1594.8 Ma 0 5 -26 33.3 4 -10 237 k calculated from R and N, dikes, western channel dikes and contact rocks 20 Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.28 242.4 1589 1594.8 Ma 0 2 -51 200 3 k calculated from R and N, dikes, western channel dikes and contact rocks [excluded: subsumed into site mean] 20c Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Extrusive Lava Flow Porphyritic Basalt 66.28 242.4 1589 1594.8 Ma 0 14 -67 66.7 3 k calculated from R and N, contact rock [excluded: subsumed into site mean] 20mean Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Intrusive:Extrusive Volcanic Dike:Lava Flow Diabase:Porphyritic Basalt 66.28 242.4 1589 1594.8 Ma 0 7 -59 45.5 6 16 237 k calculated from R and N, dikes mean 21 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.27 242.37 1589 1594.8 Ma 0 356 -34 200 3 -5 246 k calculated from R and N, dikes, western channel dikes and contact rocks 22 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.26 242.3 1589 1594.8 Ma 0 356 -36 2 -4 246 k calculated from R and N, dikes, western channel dikes and contact rocks 23 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.24 242.27 1589 1594.8 Ma 0 3 -36 100 3 -4 239 k calculated from R and N, dikes, western channel dikes and contact rocks 24 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.25 242.28 1589 1594.8 Ma 0 3 -40 100 3 -1 240 k calculated from R and N, dikes, western channel dikes and contact rocks 129 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.03 241.95 1589 1594.8 Ma 0 349 -23 100 3 -12 253 k calculated from R and N, dikes, western channel dikes and contact rocks 137 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.08 242.03 1589 1594.8 Ma 0 1 -28 14.3 2 -9 241 k calculated from R and N, dikes, western channel dikes and contact rocks 138 Western Channel Diabase, Great Bear Lake-west side, NWT i g LP-DIR-AF:DE-FM 10.1139/e72-080 Intrusive Volcanic Dike Diabase 66.08 242.01 1589 1594.8 Ma 0 3 -35 2 -5 239 k calculated from R and N, dikes, western channel dikes and contact rocks 144 Western Channel Diabase, Great Bear Lake-west side, NWT i b LP-DIR-AF:LP-DIR-T:DE-FM 10.1139/e72-080 Intrusive Sill Diabase 66.04 242.2 1589 1594.8 Ma 0 138 59 200 3 21 276 k calculated from R and N, Port Radium sill [excluded: Port Radium sill, separate unit] >>>>>>>>>> tab delimited ages location age age_sigma age_unit timescale_eon timescale_era timescale_period description method_codes citations Western Channel Diabase, Great Bear Lake-west side, NWT 1590.2 1.9 Ma Proterozoic Mesoproterozoic Calymmian WCD sheet FA66-42 (MacAlpine Channel), weighted-mean 207Pb/206Pb U-Pb single-grain baddeleyite 1590.2 +/- 3.8 Ma (95% conf.; Hamilton and Buchan, 2010) GM-UPB-CC 10.1016/j.precamres.2010.06.009 Western Channel Diabase, Great Bear Lake-west side, NWT 1591.9 1.45 Ma Proterozoic Mesoproterozoic Calymmian WCD sheet FA66-44 (Hornby Bay), weighted-mean 207Pb/206Pb U-Pb baddeleyite 1591.9 +/- 2.9 Ma (95% conf.; Hamilton and Buchan, 2010) GM-UPB-CC 10.1016/j.precamres.2010.06.009 Western Channel Diabase, Great Bear Lake-west side, NWT 1592.4 1.25 Ma Proterozoic Mesoproterozoic Calymmian WCD sample FA66-045, U-Pb baddeleyite upper-intercept 1592.4 +/- 2.5 Ma (95% conf.; Rogers et al., 2018) GM-UPB 10.1016/j.lithos.2018.06.002