Table 7.
Optically Stimulated Luminescence (OSL) ages from stratigraphic sections at sites along the Bol'shaya Balaknya River, the Luktakh – Upper Taimyra – Logata river system and the Novorybnoye site (Fig. 1). More exact site locations are seen on Fig. 6 and Fig. 15 in [1], and stratigraphic positions of samples are indicated in sediment logs in [1], Figs. 7, 8, 9, 12, 13, 14, 16, 17, 18, 19 and 20.
| Site | Coordinates | Site | Samle code | Sediment unit | OSL lab. code | m a.s.l. | quartz OSL De Gy | n | age ratio IR50/OSL | age ratio pIRIR290/OSL | quartz OSL age, ka | prob. well reset | well reset | Context |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bol'shaya | N72° 32,384′ | 1 | BBR 1:1a | no log | R-111003 | 420 | 35.0 ± 2 | 26 | 0.38 ± 0.04 | 1.10 ± 0.12 | 30 ± 2 | ✓ | ✓ | fluvial/ice complex |
| Balaknya River 1 | E100° 25,876′ | BBR 1:1b | no log | R-121001 | 490 | 31.8 ± 1.1 | 31 | 0.68 ± 0.10 | 1.9 ± 0.4 | 16.5 ± 1.0 | ✓ | fluvial/ice complex | ||
| Bol'shaya | N73° 38,030′ | 2 | BBR 2:2 | unit B2 | R-111004 | 54.6 | >250 | 40 | <0.5 | <1.2 | >75 | ✓ | ✓ | off-shore marine |
| Balaknya River 2 | E100° 24, 914′ | BBR 2:3 | unit B1 | R-111005 | 53.5 | >250 | 21 | <0.8 | <1.6 | >117 | ✓ | off-shore marine | ||
| BBR 2:4 | unit B1 | R-111006 | 52.4 | >250 | 24 | <0.7 | <1.7 | >104 | ✓ | off-shore marine | ||||
| Bol'shaya | N73° 36.775′ | 2 | BBR 4:1 | unit A1 | R-111007 | 58.2 | >250 | 38 | <0.54 | <0.98 | >119 | ✓ | ✓ | marine delta |
| Balaknya River 4 | E100° 20.693′ | BBR 4:2 | unit A1 | R-111008 | 57.8 | 202 ± 8 | 17 | 0.62 ± 0.06 | 1.5 ± 0.2 | 85 ± 5 | ✓ | marine delta | ||
| Bol'shaya | N73° 31,572′ | 3 | BBR 6:2 | unit A | S-11077 | 37.2 | >152 | 22 | n/a | n/a | >49 | glaciomarine | ||
| Balaknya River 6 | E101° 0,610′ | BBR 6:6 | unit A | S-11078 | 43.7 | 264 ± 6 | 18 | n/a | n/a | 83 ± 6 | glaciomarine | |||
| BBR 6:8 | unit A | R-121002 | 45.5 | 180 ± 9 | 35 | 0.63 ± 0.05 | 1.85 ± 0.16 | 92 ± 6 | ✓ | glaciomarine | ||||
| BBR 6:9 | unit A | R-121003 | 48.2 | 156 ± 11 | 36 | 0.85 ± 0.09 | 1.99 ± 0.19 | 77 ± 7 | ✓ | glaciomarine | ||||
| BBR 6:14 | unit B | S-11079 | 56.2 | 138 ± 3 | 24 | n/a | n/a | 50 ± 3 | fluvial | |||||
| BBR 6:15 | unit B | R-121004 | 57.0 | 88 ± 3 | 32 | 0.80 ± 0.09 | 1.38 ± 0.07 | 39 ± 2 | ✓ | fluvial | ||||
| Bol'shaya | N73° 39,224′ | 4 | BBR 8:1 | unit A1 | S-11080 | 36.0 | 210 ± 3 | 24 | n/a | n/a | 97 ± 7 | marine | ||
| Balaknya River 8 | E102° 10,223′ | BBR 8:2 | unit A1 | R-121005 | 39.5 | 156 ± 10 | 32 | 0.71 ± 0.07 | 1.40 ± 0.16 | 87 ± 6 | ✓ | marine | ||
| BBR 8:4 | unit A1 | S-11081 | 42.2 | 265 ± 10 | 18 | n/a | n/a | 96 ± 7 | marine | |||||
| BBR 8:7 | unit A1 | R-121006 | 44.1 | 199 ± 12 | 36 | 0.67 ± 0.07 | 1.78 ± 0.15 | 89 ± 6 | ✓ | marine | ||||
| BBR 8:10 | unit A1 | S-11082 | 48.0 | 275 ± 5 | 24 | n/a | n/a | 93 ± 6 | marine | |||||
| Bol'shaya | N73° 26,525′ | 5 | BBR 11:2 | unit C | R-111009 | 24.5 | 76 ± 3 | 30 | 0.58 ± 0.08 | 1.01 ± 0.12 | 46 ± 3 | ✓ | ✓ | fluvial |
| Balaknya River 11 | E103° 26,609′ | BBR 11:3 | unit C | R-121007 | 28.4 | 37.5 ± 1.4 | 26 | 0.37 ± 0.03 | 0.84 ± 0.07 | 19.3 ± 1.2 | ✓ | ✓ | fluvial | |
| BBR 11:4 | unit C | R-111010 | 30.7 | 42.1 ± 1.2 | 32 | 0.63 ± 0.08 | 1.27 ± 0.14 | 19.2 ± 1.0 | ✓ | ✓ | fluvial | |||
| Bol'shaya | N73° 26,747′ | 5 | BBR 12:1 | unit A | R-111011 | 300 | >250 | 21 | <1.20 | – | >131 | − | − | marine |
| Balaknya River 12 | E103° 26,307′ | BBR 12:2 | unit A | R-121008 | 150 | >250 | 36 | <1.7 | – | >100 | – | − | marine | |
| Bol'shaya | N73° 27,584′ | 6 | BBR13:1 | unit A | R-111012 | 14.1 | >250 | 32 | <0.72 | <1.7 | >157 | ✓ | fluvial | |
| Balaknya River 13 | E104° 9,881′ | BBR13:2 | unit A | R-121009 | 15.6 | >250 | 18 | <1.1 | – | >124 | ✓ | fluvial | ||
| BBR13:3 | unit A | R-121010 | 18.0 | >250 | 18 | <1.2 | – | >118 | ✓ | fluvial | ||||
| BBR13:5 | unit D | R-111013 | 34.4 | >250 | 20 | <0.93 | <2 | >110 | ✓ | shallow marine | ||||
| BBR13:6 | unit D | R-121011 | 35.4 | 234 ± 20 | 18 | 0.99 ± 0.12 | 2.6 ± 0.3 | 119 ± 11 | ✓ | shallow marine | ||||
| BBR13:7 | unit D | R-121012 | 36.3 | 163 ± 12 | 17 | 0.87 ± 0.14 | 1.7 ± 0.3 | 100 ± 9 | ✓ | shallow marine | ||||
| Bol'shaya | N73° 29,873′ | 6 | BBR 14:1 | unit A1 | R-111014 | 25.7 | >250 | 29 | <0.42 | <0.9 | >124 | ✓ | ✓ | shallow marine |
| Balaknya River 14 | E104° 13,599′ | BBR 14:2 | unit A2 | R-111015 | 28.8 | >250 | 21 | <0.23 | <0.6 | >131 | ✓ | ✓ | shallow marine | |
| BBR 14:4 | unit A2 | R-121016 | 30.0 | 216 ± 11 | 25 | 0.59 ± 0.05 | 1.03 ± 0.11 | 104 ± 7 | ✓ | ✓ | shallow marine | |||
| Bol'shaya | N73° 25,832′ | 6 | BBR 15:2 | unit A | R-121015 | 11.0 | >250 | 12 | <0.9 | <0.7 | >120 | ✓ | glaciotectonic def of ? | |
| Balaknya River 15 | E104° 21,352′ | BBR 15:7 | unit C | R-121014 | 15.0 | >250 | 12 | <0.9 | <2 | >167 | ✓ | glaciomarine | ||
| BBR 15:6 | unit C | R-121013 | 16.0 | >250 | 10 | <0.9 | <2 | >131 | ✓ | shallow marine | ||||
| BBR 15:5 | unit C | R-111016 | 18.6 | >250 | 19 | <1.03 | <2 | >119 | ✓ | shallow marine | ||||
| BBR 15:8 | unit E | R-111017 | 22.7 | 80 ± 6 | 26 | 0.49 ± 0.05 | 0.7 ± 0.2 | 46 ± 4 | ✓ | ✓ | aeolian | |||
| BBR 15:1 | unit E | R-111018 | 24.0 | 126 ± 6 | 26 | 0.57 ± 0.08 | 1.08 ± 0.15 | 57 ± 4 | ✓ | ✓ | aeolian | |||
| Bol'shaya | N73° 30,964′ | 6 | BBR 16A1:1 | unit A | S-11072 | 12.5 | >415 | 22 | n/a | n/a | >138 | shallow marine | ||
| Balaknya River 16A | E104° 32,033′ | BBR 16A1:2 | unit A | S-11073 | 15.0 | >379 | 30 | n/a | n/a | >121 | shallow marine | |||
| BBR 16A1:3 | unit A | S-11074 | 18.8 | >486 | 26 | n/a | n/a | >163 | shallow marine | |||||
| BBR 16A1:4 | unit A | S-11075 | 20.8 | >449 | 18 | n/a | n/a | >153 | shallow marine | |||||
| BBR 16A3:5 | unit D | R-121017 | 38.8 | 127 ± 8 | 26 | 0.85 ± 0.20 | 1.21 ± 0.16 | 60 ± 5 | ✓ | ✓ | aeolian | |||
| BBR 16A3:6 | unit D | S-11076 | 40.8 | 85.3 ± 1.2 | 26 | 32 ± 2 | aeolian | |||||||
| Bol'shaya | N73° 31,004′ | 6 | BBR 16C:1 | unit A | R-111019 | 10.1 | >250 | 15 | <0.5 | <1.4 | >137 | ✓ | shallow marine | |
| Balaknya River 16C | E104° 32,621′ | BBR 16C:2 | unit A | R-121018 | 12.5 | 132 ± 10 | 21 | 1.30 ± 0.14 | 3.4 ± 0.5 | 100 ± 9 | − | − | shallow marine | |
| Bol'shaya | N73° 37,314′ | 7 | BBR 17B:1 | unit B | S-11083 | 8.0 | 103 ± 5 | 20 | n/a | n/a | 42 ± 4 | fluvial | ||
| Balaknya River 17B | E105° 39,092′ | BBR 17B:3 | unit B | R-111020 | 9.0 | 71 ± 4 | 23 | 0.54 ± 0.06 | 1.16 ± 0.16 | 45 ± 3 | ✓ | ✓ | fluvial | |
| Novorybnoye 1a | N72° 49,742′ E105° 47,142′ | 8 | Nov 1a:3 | unit A | R-131001 | 11.0 | >250 | 15 | <1.9 | – | >117 | − | − | fluvial cretaceous |
| Novorybnoye 1c | Nov 1c:5 | unit D | R-131002 | 15.0 | >250 | 18 | <0.9 | <6 | >129 | ✓ | glaciomarine | |||
| Nov 1c:6 | unit D | R-131003 | 15.5 | >250 | 27 | <1.0 | <5 | >119 | ✓ | glaciomarine | ||||
| Novorybnoye 1e | N72° 49,771′ E105° 47,233′ | Nov 1e:8 | unit F | R-131004 | 26.5 | 26.3 ± 0.6 | 29 | 0.63 ± 0.05 | 1.17 ± 0.09 | 14.3 ± 0.7 | ✓ | ✓ | aeolian | |
| Nov 1e:9 | unit F | R-131005 | 27.0 | 26.5 ± 0.8 | 33 | 0.66 ± 0.05 | 0.97 ± 0.07 | 14.4 ± 0.8 | ✓ | ✓ | aeolian | |||
| Novorybnoye 2 | N72° 49,650′ E105° 47,073′ | 8 | Nov 2:2 | unit E2 | R-131006 | 17.0 | 236 ± 16 | 18 | 0.56 ± 0.10 | 1.5 ± 0.3 | 124 ± 10 | ✓ | ✓ | shallow marine |
| Nov 2:3 | unit E2 | R-131007 | 16.0 | >250 | 7 | <0.8 | <5 | >182 | ✓ | shallow marine | ||||
| Novorybnoye 3 | N72° 49,483′ E105° 47,002′ | 8 | Nov 3:1 | unit E2 | R-131008 | 22.0 | 229 ± 12 | 15 | 0.70 ± 0.07 | 1.89 ± 0.30 | 101 ± 7 | ✓ | shallow marine | |
| Nov 3:2 | unit E2 | R-131009 | 21.6 | >250 | 28 | <0.6 | <5 | >121 | ✓ | shallow marine | ||||
| Luktakh River 4 | N72° 59,084′ | 9 | LuR 4:3 | unit A3 | S-13002 | 57.8 | 240 ± 9 | 29 | n/a | n/a | 90 ± 6 | ✓ | ✓ | shallow marine |
| E92° 12,187′ | ||||||||||||||
| Luktakh River 6b | N72° 51,'1322′ | 10 | LuR 6b:7 | unit A | S-13007 | 24.7 | 381 ± 11 | 29 | n/a | n/a | >144 | ✓ | ✓ | marine? |
| E92° 28,797′ | ||||||||||||||
| Luktakh River 8 | N72° 51,910′ | 11 | LuR 8:3 | unit B | S-13009 | 23.4 | 87 ± 2 | 56 | n/a | n/a | 33 ± 2 | ✓ | ✓ | fluvial |
| E93° 27,623′ | LuR 8:4 | unit B | S-13010 | 25.9 | 82 ± 5114 ± 455 | 25 | n/a | n/a | 32 ± 3 43 ± 3 | fluvial | ||||
| Luktakh River 9 | N72° 48,826′ | 11 | LuR 9a:1 | unit A | S-13011 | 39.1 | 279 ± 19 | 37 | n/a | n/a | >84 | ✓ | ✓ | glaciotectonic def of ? |
| E93° 22,093′ | LuR 9a:2 | unit A | S-13012 | 38.6 | 306 ± 11 | 36 | n/a | n/a | >99 | ✓ | ✓ | glaciotectonic def of ? | ||
| Luktakh River 10 | N73° 09,387′ | 12 | LuR 10:1 | no log | R-131017 | 23.7 | 0.16 ± 0.12 | 18 | 9.4 ± 1.5 | 60 ± 9 | 0.087 ± 0.012 | (✓) | (✓) | aeolian |
| E93° 24,429′ | LuR 10:3 | no log | R-131018 | 18.2 | 8.5 ± 0.2 | 19 | 0.68 ± 0.05 | 2.5 ± 0.2 | 4.7 ± 0.2 | ✓ | fluvial point bar | |||
| LuR 10:4 | no log | R-131019 | 14.5 | 9.7 ± 0.3 | 17 | 0.68 ± 0.07 | 1.44 ± 0.11 | 5.2 ± 0.3 | ✓ | fluvial point bar | ||||
| Logata River 3b | N73° 20,723′ | 15 | LoR 3b:4 | unit D | R-131010 | 33.0 | 83 ± 4 | 24 | 0.83 ± 0.12 | 1.34 ± 0.19 | 48 ± 3 | ✓ | fluvial point bar | |
| E97° 00,462′ | LoR 3b:5 | unit D | R-131013 | 30.0 | 105 ± 3 | 22 | 0.65 ± 0.08 | 1.08 ± 0.10 | 51 ± 3 | ✓ | ✓ | fluvial point bar | ||
| LoR 3b:6 | unit D | R-131014 | 27.7 | 99 ± 2 | 24 | 0.56 ± 0.06 | 1.07 ± 0.19 | 57 ± 3 | ✓ | ✓ | fluvial point bar | |||
| Logata River 3c | N73° 20,278′ | 15 | LoR 3c:1 | unit D | S-130101 | 29.1 | 61 ± 2 | 28 | n/a | n/a | 24.5 ± 1.7 | ✓ | ✓ | fluvial |
| E97° 01,290′ | ||||||||||||||
| Logata River 3d | N73° 19,956′ | 15 | LoR 3d:5 | unit D | R-131012 | 33.0 | 95 ± 5 | 27 | 0.59 ± 0.06 | 1.4 ± 0.2 | 50 ± 3 | ✓ | fluvial point bar | |
| E97° 00,866′ | ||||||||||||||
| Logata River 6 | N73° 19,139′ | 16 | LoR 6:1 | unit B | S-13004 | 100 | 227 ± 9 | 31 | n/a | n/a | 88 ± 6 | ✓ | ✓ | Till boudin; marine sed? |
| E97° 32,471′ | LoR 6:2 | unit A | S-13005 | 310 | 267 ± 8 | 26 | n/a | n/a | >99 | ✓ | ✓ | marine sed? | ||
| LoR 6:3 | unit A | S-13006 | 1010 | 158 ± 11,226 ± 10,335 ± 11 | 33 | n/a | n/a | >61 > 87 > 128 | marine sed? |