|
81978 |
| GEOLHIST uncertain |
2400 |
| Age based on fossil horizons |
2387 |
| Dating in SVL: U/Pb 182.7 to 182.2 +/-0.2 Ma: Ar/Ar 176 +/-1.8 Ma |
1566 |
| Dating: U/Pb 182.7 to 182.2 +/-0.2 Ma: Ar/Ar 176 +/-1.8 Ma |
873 |
| Plant fossils |
838 |
| Ar-Ar and K-Ar dating |
693 |
| U-Pb detrital zircon |
480 |
| Fossils |
329 |
| Original correlation to Thiel Mountains porphyry. 526 +/- 2Ma Upb |
190 |
| GEOLHIST inferred; Early to Middle Devonian, from age of enclosing units |
178 |
| U-Pb zircon: 510.78 +/- 0.56 Ma margin, 503.77 +/- 0.37 Ma core |
174 |
| Middle Devonian lycopod stems |
156 |
| Average crystallisation age 510 +/- 9 Ma - see Faure & Mensing 2010 |
147 |
| Inferred age 499-494 Ma |
144 |
| Early Devonian palynomorphs: Middle Devonian fish |
129 |
| GRPEQUIV uncertain. GEOLHIST inferred; probably 539-510 Ma, from intrusive and deformational relationships |
127 |
| Radiocarbon ages: approximate 6-27 ka |
102 |
| Dolerite age 172-182 Ma |
97 |
| GEOLHIST inferred; from age of enclosing units |
87 |
| Early Permian plant fossils |
83 |
| Trace fossils |
74 |
| LITHOLOGY unknown; Unvisited exposed rock or cover deposits, nature unknown |
70 |
| correlation to Beacon Heights Orthoquartzite |
66 |
| GEOLHIST inferred; from Early Devonian palynomorphs in Terra Cotta Siltstone |
63 |
| LITHOLOGY uncertain; not examined |
63 |
| Middle Triassic to Late Triassic plant fossils, probable late Middle Triassic |
63 |
| GRPEQUIV inferred; Dating: U/Pb 182.7 to 182.2 +/-0.2 Ma: Ar/Ar 176 +/-1.8 Ma |
61 |
| c.530-490 Ma (Paulsen et al. 2018). E. Camb. archaeocyathids, trilobites, tube fossils. Leverett Fmn U-Pb ages 505-516 Ma; Fairweather Fm 550 +/-15Ma |
61 |
| Age based on U-Pb zircon dating |
55 |
| GEOLHIST inferred; Early Triassic from plant fossils |
49 |
| Age and correlation inferred |
46 |
| Uncertain |
44 |
| GEOLHIST inferred; presumed to be early Paleozoic |
42 |
| From NE-flowing ice: mixed wet- and dry-based |
41 |
| GRPEQUIV uncertain |
40 |
| Age based on Rb-Sr, K-Ar and U-Pb zircon dating |
37 |
| GEOLHIST uncertain; probably older or equivalent to Bonney Pluton |
34 |
| GEOLHIST inferred; Probable Holocene <6 ka |
33 |
| GRPEQUIV inferred; Post-dates Vanda Dikes (495-491 Ma) |
33 |
| Lithologic correlation with Bonney Pluton |
32 |
| Rb-Sr 510 +/- 35 Ma |
32 |
| U-Pb zircon c.495 Ma |
32 |
| GRPEQUIV uncertain. GEOLHIST inferred; Cambrian - Early Ordovician |
31 |
| Rb-Sr 490 +/- 14 Ma |
31 |
| Middle Devonian fish fossils: ?late Givetian at Mt Crean |
29 |
| 503.8 and 503.5 crystallisation ages Woodall Pk. Paulsen et al. 2013 |
28 |
| GEOLHIST inferred; predates 13.6 Ma ash: above ~1500 m from cold-based ice |
28 |
| Hillary Granitoids age range from Read 2010 |
27 |
| Carapace Sandstone palynology: Correlation with Ferrar Dolerite ages |
26 |
| GRPEQUIV inferred; U-Pb zircon 495.7 +/- 2 Ma: Rb-Sr cooling 477 +/- 7 Ma |
24 |
| GRPEQUIV inferred; from intrusive relationships and intrusive style |
24 |
| U-Pb zircon ages 510 +/-2.8 to 499.6 +/-3.5 Ma, Hagen-Peter unpublished |
23 |
| U-Th and exposure ages: probable 130-180 ka |
21 |
| GRPEQUIV uncertain; Cross-cut by Vanda Dikes |
19 |
| Cosmogenic dating Middle Pleistocene |
18 |
| GEOLHIST inferred; Pliocene to Pleistocene age |
18 |
| GRPEQUIV inferred; Post-dates Vanda Dikes: U-Pb zircon 496.5 +/-2 to 493 +/-1.4 Ma |
18 |
| U-Pb zircon and titanite 548 +/- 2 Ma, 547 +/- 4 Ma |
18 |
| GRPEQUIV inferred; Early Devonian palynomorphs: Middle Devonian fish fossils |
17 |
| GRPEQUIV inferred; U-Pb zircon 493.8 +/- 1.7 Ma, Hagen-Peter et al unpublished |
15 |
| 493.95 +/- 0.17 Ma U-Pb Tulloch in prep. |
14 |
| Intrudes Bonney Pluton, pre-dates Vanda Dikes |
14 |
| Radiocarbon ages and crosscutting relationships: c. 6-27 ka |
14 |
| U-Pb zircon 499.26 +/- 0.22 Ma Tulloch unpublished |
14 |
| GEOLHIST inferred; From local glaciers: Inferred Pliocene |
13 |
| GRPEQUIV GEOLHIST inferred; 515-485 Ma, from intrusive relationships |
13 |
| GRPEQUIV uncertain. GEOLHIST inferred; probably coeval with Hidden Granite |
12 |
| Intrusive relationships: Pre-dates Vanda Dikes, cross-cuts Bonney Pluton |
12 |
| U-Th ages 70-130 ka |
12 |
| GRPEQUIV inferred; U-Pb zircon: 510.78 +/- 0.56 Ma margin, 503.77 +/- 0.37 Ma core |
11 |
| Hooper Intrusives age range from Read 2010. |
11 |
| Overlies Miocene silt: overlain by local Alpine till |
11 |
| U-Pb zircon 517.2 +/- 4 Ma, Hagen-Peter et al unpublished |
11 |
| GEOLHIST inferred; From expansion of ice sheet: ?correlation with Peleus Till |
10 |
| GEOLHIST inferred; discordant U-Pb ages: Mellish et al. 536+/-10 Ma |
10 |
| GRPEQUIV GEOLHIST inferred; intrusive relationships |
10 |
| GRPEQUIV inferred; Carapace Sandstone palynology: Correlation with Ferrar Dolerite ages |
9 |
| GRPEQUIV inferred; U-Pb zircon 502.1 +/-2.6 Ma Hagen-Peter et al unpublished |
9 |
| GRPEQUIV inferred; U-Pb zircon age discordant: Rb-Sr cooling |
9 |
| Re-assigned Capponi et al. 2018a unpublished following Elliot et al. 1986 |
9 |
| Sr & Na2O enriched, correlated with DV1b; Titanite U-Pb 515 Ma |
9 |
| U-Pb zircon 493.7 +/- 4.1 Ma; U-Pb monazite 488 +/- 2 Ma |
9 |
| GEOLHIST inferred; ?Middle Miocene: tentative correlation with Sirius Formation |
8 |
| U-Pb zircon 548 +/-4 Ma: U-Pb titanite 517+/-4 Ma reset |
8 |
| unit identification uncertain |
8 |
| 536 +/- 8 Ma U-Pb |
7 |
| GEOLHIST inferred; Middle to Late Pleistocene age |
7 |
| GEOLHIST inferred; Undated. Inferred Early Pleistocene |
7 |
| GEOLHIST inferred; post-date Vanda Dikes; based on lack of cross-cutting relationship |
7 |
| GEOLHIST uncertain; K-Ar 501 +/- 7 Ma |
7 |
| GRPEQUIV inferred; Hillary Granitoids age range from Read 2010 |
7 |
| 547 Ma & 541 Ma |
6 |
| GEOLHIST inferred; Middle to Late Pleistocene: possible 10-24 ka age |
6 |
| GEOLHIST inferred; palynological correlation |
6 |
| Intrudes Flint Pluton, pre-dates Vanda Dikes |
6 |
| U-Pb zircon 498 +/- 4 Ma |
6 |
| 530 +/-8 Ma in Richardson 2002 reinterpreted by Read 2010 |
5 |
| 540 Ma |
5 |
| Constrained by 1.6-3.5 Ma McMurdo Volcanics |
5 |
| Early Devonian palynomorphs, trace fossils |
5 |
| GEOLHIST inferred; predates 15 Ma ash: associated W/SW to NE ice striations |
5 |
| GEOLHIST uncertain; probably coeval with Bonney Pluton |
5 |
| GRPEQUIV inferred; Intruded by Harker Pluton |
5 |
| GRPEQUIV uncertain. GEOLHIST inferred; Probably 539-510 Ma, from intrusive and deformational relationships |
5 |
| U-Pb zircon 516 +/- 10 Ma |
5 |
| 546 +/- 3 Ma U-Pb |
4 |
| GEOLHIST inferred; Early Devonian, lower Taylor Group |
4 |
| GEOLHIST inferred; Not well constrained: inferred early to mid Quaternary |
4 |
| GEOLHIST inferred; Older than 19 ka delta and 49 ka sediments: ? penultimate glaciation Q6 |
4 |
| GEOLHIST inferred; Pliocene. Younger than 3.9 Ma Hart Ash |
4 |
| GEOLHIST inferred; to be older than Vanda Dikes |
4 |
| GRPEQUIV inferred; plant fossils |
4 |
| U-Pb zircon 509.1 +/- 1.8 Ma, Hagen-Peter et al unpublished |
4 |
| Age inferred |
3 |
| Correlation with Ferrar Dolerite: Carapace Sandstone palynology |
3 |
| GEOLHIST inferred; Not well constrained: possible mid Quaternary |
3 |
| GEOLHIST inferred; Older than 19 ka delta and 49 ka sediments: ?penultimate glaciation Q6 |
3 |
| GEOLHIST inferred; Pliocene or Miocene age: not well constrained |
3 |
| GEOLHIST inferred; based on lithologic correlation: Read 2010 |
3 |
| GEOLHIST inferred; discordant U-Pb titanite and zircon 535 +/-9 Ma |
3 |
| GRPEQUIV uncertain. GEOLHIST inferred; Intrusive relationships: Pre-dates Vanda Dikes, cross-cuts foliation |
3 |
| Intrusive relationships |
3 |
| K-Ar dating Mt Early 15.86 +/- 0.3Ma Stump et al. 1980 |
3 |
| LITHOLOGY GRPEQUIV inferred; from intrusive relationships and intrusive style |
3 |
| U-Pb zircon 553+/-5, 550+/-5 Ma crystallisation: Read 2010 |
3 |
| U-Pb zircon 515.16 +/- 0.36 Ma Tulloch unpublished |
3 |
| U-Th and exposure ages: probable 130-190 ka |
3 |
| 521 +/- 2 Ma in Encarnacion & Grunow 1996 |
2 |
| 524 +/- 2 Ma UPb age |
2 |
| 545 Ma |
2 |
| From NE-flowing ice: older than 13.9 Ma ash |
2 |
| GEOLHIST inferred; Inferred Pliocene. Poorly constrained. |
2 |
| GEOLHIST inferred; Middle Miocene, local stratigraphic relationship and 11.3 Ma ash |
2 |
| GEOLHIST inferred; Middle to Late Pleistocene |
2 |
| GEOLHIST inferred; Not well constrained: inferred Early to Middle Pleistocene |
2 |
| GEOLHIST inferred; Not well constrained: inferred early Quaternary |
2 |
| GEOLHIST inferred; Radiocarbon ages. Inferred Middle to Late Pleistocene |
2 |
| GEOLHIST inferred; age between 18.7 and 17.0 Ma at Gandalf Ridge |
2 |
| GEOLHIST inferred; from degree of modification or nearby stratigraphic relationships |
2 |
| GEOLHIST inferred; overlies Altar Till: predates 11.3Ma ash |
2 |
| GEOLHIST inferred; predates 13.5Ma ash: associated with N to S ice striations |
2 |
| GEOLHIST inferred; predates 15.2Ma ash |
2 |
| GEOLHIST uncertain; Q2 >11.3 Ma ash: Q1 <11.6 Ma but >7.4 Ma |
2 |
| GEOLHIST uncertain; U-Pb zircon and Rb-Sr |
2 |
| GRPEQUIV GEOLHIST inferred; based on lithologic correlation: Read 2010 |
2 |
| Inferred age |
2 |
| Late Miocene |
2 |
| Middle to Late Miocene: diatoms; 9 Ma Sr age on shell fragment |
2 |
| Rb-Sr 525 +/- 34 Ma |
2 |
| Correlated with Glasgow Volcanics |
1 |
| Cross-cut by biotite granodiorite dikes and Pearse Pluton |
1 |
| Cross-cuts Orestes and Packard plutons |
1 |
| GEOLHIST inferred; Pliocene age: older than Alpine 4 till |
1 |
| GEOLHIST inferred; Pre-dates 11.3 Ma ash: origin poorly understood |
1 |
| GEOLHIST inferred; discordant TIMS zircon: interpretation 546 +/-3 Ma: Read 2010 |
1 |
| GEOLHIST uncertain; Sr-isotope age 5.5 +/- 0.4 Ma: diatoms <3 Ma |
1 |
| GRPEQUIV inferred; intrusive relationships |
1 |
| GRPEQUIV uncertain. GEOLHIST inferred; lithologic correlation. |
1 |
| K-Ar biotite cooling 461-451 Ma |
1 |
| U-Pb 515 +/- 4 Ma Read 2010 |
1 |
| UPb zircon 546 +/- 10 Ma |
1 |