Acton, Gary D; Guyodo, Yohan; Brachfeld, Stefanie A (2002): (Table T1) Combined magnetostratigraphy of ODP Site 178-1095 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.737851, In supplement to: Acton, GD et al. (2002): Magnetostratigraphy of sediment drifts on the continental rise of West Antarctica (ODP Leg 178, Sites 1095, 1096, and 1101). In: Barker, PF; Camerlenghi, A; Acton, GD; Ramsay, ATS (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 178, 1-61, https://doi.org/10.2973/odp.proc.sr.178.235.2002
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Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -66.985400 * Longitude: -78.487867
Date/Time Start: 1998-02-13T00:00:00 * Date/Time End: 1998-02-13T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 515.00 m
Event(s):
178-1095 * Latitude: -66.985400 * Longitude: -78.487867 * Date/Time: 1998-02-13T00:00:00 * Elevation: -3841.4 m * Penetration: 745 m * Recovery: 554.1 m * Location: South Pacific Ocean * Campaign: Leg178 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 72 cores; 662 m cored; 83 m drilled; 83.7% recovery
Comment:
DEPTH, sediment (m) is composite depth (mcd)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Chronozone | Chronozone | Acton, Gary D | |||
| 3 | Polarity | Polarity | Acton, Gary D | reversal type: N>R = polarity of the field changed from normal to reversed, R>N = polarity of the field changed from reversed to normal | ||
| 4 | AGE | Age | ka BP | Geocode | ||
| 5 | Depth, composite top | Depth comp top | mcd | Acton, Gary D | ||
| 6 | Depth, composite bottom | Depth comp bot | mcd | Acton, Gary D | ||
| 7 | Sedimentation rate | SR | cm/ka | Acton, Gary D | ||
| 8 | Comment | Comment | Acton, Gary D | |||
| 9 | Comment 2 (continued) | Comm 2 | Acton, Gary D | |||
| 10 | Comment 3 (continued) | Comm 3 | Acton, Gary D |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
262 data points
Data
| 1 Depth sed [m] | 2 Chronozone | 3 Polarity | 4 Age [ka BP] | 5 Depth comp top [mcd] | 6 Depth comp bot [mcd] | 7 SR [cm/ka] | 8 Comment | 9 Comm 2 | 10 Comm 3 |
|---|---|---|---|---|---|---|---|---|---|
| 0.00 | 0 | N | 0 | 0.00 | 0.00 | Depth to mudline in mbsf agrees to within 2 cm for the first core from Holes 1095A, 1095B, and 1095C. | |||
| 16.04 | C1n (o) | R>N | 780 | 15.92 | 16.16 | 2.056 | Hole 1095A preferred. The reversal boundary is the same as identified by Shipboard Scientific Party (1999a), but the location of the boundary has been adjusted slightly. | ||
| 18.16 | C1r.1n (t) | N>R | 990 | 18.05 | 18.27 | 1.010 | Hole 1095A preferred. Identification of chron and reversal boundaries is speculative; therefore, these reversal boundaries are not used in the sedimentation rate plots. | ||
| 19.21 | C1r.1n (o) | R>N | 1070 | 18.42 | 20.00 | 1.313 | Hole 1095D preferred. Identification of chron and reversal boundaries is speculative; therefore, these reversal boundaries are not used in the sedimentation rate plots. | ||
| 34.68 | C2n (t) | N>R | 1770 | 34.66 | 34.70 | 1.883 | Hole 1095A preferred. Our interpretation places Chron C2n ~20 m higher in the section than that by Shipboard Scientific Party (1999a). | ||
| 37.33 | C2n (o) | R>N | 1950 | 37.24 | 37.42 | 1.472 | Hole 1095D preferred. Our interpretation places Chron C2n ~20 m higher in the section than that by Shipboard Scientific Party (1999a) | ||
| 41.84 | C2r.1n (t) | N>R | 2140 | 39.88 | 41.92 | 2.374 | The polarity subzone interpreted to represent Subchron C2r.1n is speculative. Rather than a geomagnetic origin, the subzone could be caused by coring disturbance at the top of Core 178-1095D-6H. | We place the C2r.1n (t) reversal at the very top of Core 178-1095D-6H. This subchron was thought to be lost in a hiatus based on the interpretation of Shipboard Scientific Party (1999a). | Identification of chron and reversal boundaries is speculative; therefore, these reversal boundaries are not used in the sedimentation rate plots. |
| 42.36 | C2r.1n (o) | R>N | 2150 | 42.32 | 42.40 | 5.200 | The polarity subzone interpreted to represent Subchron C2r.1n is speculative. Rather than a geomagnetic origin, the subzone could be caused by coring disturbance at the top of Core 178-1095D-6H. | We place the C2r.1n (t) reversal at the very top of Core 178-1095D-6H. This subchron was thought to be lost in a hiatus based on the interpretation of Shipboard Scientific Party (1999a). | Identification of chron and reversal boundaries is speculative; therefore, these reversal boundaries are not used in the sedimentation rate plots. |
| 55.08 | C2An.1n (t) | N>R | 2581 | 55.04 | 55.12 | 2.813 | Hole 1095D preferred. The reversal boundary is the same as identified by Shipboard Scientific Party (1999a), but the location of the boundary has been adjusted slightly . | This reversal was interpreted to represent C2n (t) by Shipboard Scientific Party (1999a) and was thought to occur above a hiatus that removed reversals C2n (o) to C2An.1n (t). | |
| 77.66 | C2An.1n (o) | R>N | 3040 | 77.64 | 77.68 | 4.919 | Placing Subchron C2An.1n (o) at this locality produces a subchron (C2An.1r) that is short, with resulting sedimentation rates exceptionally slow relative to sedimentation rates above and below. | Identification of chron and reversal boundaries is speculative; therefore, these reversal boundaries are not used in the sedimentation rate plots. | |
| 77.95 | C2An.2n (t) | N>R | 3110 | 77.92 | 77.98 | 0.414 | Placing Subchron C2An.1n (o) at this locality produces a subchron (C2An.1r) that is short, with resulting sedimentation rates exceptionally slow relative to sedimentation rates above and below. | Average mcd depth taken from the best estimates from Holes 1095A and 1095D, which are 77.98 and 77.92 mcd. | Identification of chron and reversal boundaries is speculative; therefore, these reversal boundaries are not used in the sedimentation rate plots. |
| 80.18 | C2An.2n (o) | R>N | 3220 | 80.16 | 80.20 | 2.027 | Hole 1095D preferred. Identification of chron and reversal boundaries is speculative; therefore, these reversal boundaries are not used in the sedimentation rate plots. | This reversal could be C2An.1n (o) instead of C2An.2n (o), in which case no Subchron C2An.2n appears to be recorded. | |
| 84.56 | C2An.3n (t) | N>R | 3330 | 84.52 | 84.60 | 3.936 | Average mcd depth taken from the best estimates for Holes 1095A and 1095B, which are 84.58 and 85.54 mcd. | ||
| 95.49 | C2An.3n (o) | R>N | 3580 | 91.40 | 99.58 | 4.372 | The reversal occurs within an interval that has some drilling disturbance. The best estimate for the location agrees with noisy discrete data. | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | |
| 120.70 | C3n.1n (t) | N>R | 4180 | 120.68 | 120.72 | 4.202 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 129.50 | C3n.1n (o) | R>N | 4290 | 129.44 | 129.56 | 8.000 | The reversal boundary is the same as identified by Shipboard Scientific Party (1999a), but the location of the boundary has been adjusted slightly. | ||
| 131.09 | C3n.1n-1 (t) | N>R | 130.58 | 131.60 | This is possibly a newly identified cryptochron, which we refer to as C3n.1r-1 | ||||
| 131.32 | C3n.1n-1 (o) | R>N | 131.30 | 131.34 | This is possibly a newly identified cryptochron, which we refer to as C3n.1r-1 | ||||
| 136.02 | C3n.2n (t) | N>R | 4480 | 135.10 | 136.93 | 3.429 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 142.97 | C3n.2n (o) | R>N | 4620 | 142.93 | 143.01 | 4.968 | The reversal boundary is the same as identified by Shipboard Scientific Party (1999a), but the location of the boundary has been adjusted slightly. | ||
| 144.81 | C3n.3n (t) | N>R | 4800 | 144.03 | 145.58 | 1.019 | Subchron C3n.3n was not previously identified by Shipboard Scientific Party (1999a). | ||
| 146.72 | C3n.3n (o) | R>N | 4890 | 146.70 | 146.74 | 2.128 | Subchron C3n.3n was not previously identified by Shipboard Scientific Party (1999a). | ||
| 155.81 | C3n.4n (t) | N>R | 4980 | 152.90 | 158.72 | 10.100 | This poorly constrained reversal, C3n.4n (t), occurs somewhere within a broad zone of shallow inclinations. | The reversal boundary is the same as identified by Shipboard Scientific Party (1999a), but the location of the boundary has been adjusted slightly. | |
| 172.36 | C3n.4n (o) | R>N | 5230 | 171.82 | 172.90 | 6.620 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 189.66 | C3r-1 (t) | N>R | 189.62 | 189.70 | This is possibly a newly identified cryptochron, which we refer to as C3r-1. | ||||
| 191.66 | C3r-1 (o) | R>N | 191.32 | 192.00 | This is possibly a newly identified cryptochron, which we refer to as C3r-1. | ||||
| 204.63 | C3An.1n (t) | N>R | 5894 | 204.59 | 204.67 | 4.860 | The reversal boundary is the same as identified by Shipboard Scientific Party (1999a), but the location of the boundary has been adjusted slightly. | ||
| 218.80 | C3An.1n (o) | R>N | 6137 | 212.10 | 218.88 | 5.831 | Subchron 3An.1n (o) is placed in the lower part of the coring gap (top of Core 178-1095B-16X) rather than the middle. | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | |
| 233.96 | C3An.2n (t) | N>R | 6269 | 233.94 | 233.98 | 11.485 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 252.30 | C3An.2n (o) | R>N | 6567 | 247.32 | 257.28 | 6.154 | |||
| 286.54 | C3Bn (t) | N>R | 6935 | 286.52 | 286.56 | 9.304 | |||
| 296.82 | C3Bn (o) | R>N | 7091 | 296.80 | 296.84 | 6.590 | The reversal boundary is the same as identified by Shipboard Scientific Party (1999a), but the location of the boundary has been adjusted slightly. | ||
| 316.73 | C4n.1n (t) | N>R | 7432 | 316.34 | 317.12 | 5.839 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 320.30 | C4n.1n (o) | R>N | 7562 | 320.28 | 320.32 | 2.746 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 326.11 | C4n.2n (t) | N>R | 7650 | 325.54 | 326.68 | 6.602 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 350.54 | C4n.2n (o) | R>N | 8072 | 350.52 | 350.56 | 5.789 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 394.36 | C4r.2r-1 (t) | N>R | 8635 | 394.34 | 394.38 | The transition zone for Subchron C4r.2r-1 (t) is from 393.94 to 394.48 mcd in discrete samples. This is a zone that is weakly magnetized. | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 399.35 | C4r.2r-1 (o) | R>N | 8651 | 399.31 | 399.38 | The transition zone for C4r.2r-1 (o) can only be limited to between Sections 178-1095B-34X-5 and 34X-6 in split-core data. | The reversal boundary is the same as identified by Shipboard Scientific Party (1999a), but the location of the boundary has been adjusted slightly. | ||
| 406.22 | C4An (t) | N>R | 8699 | 406.20 | 406.24 | 8.880 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 440.50 | C4An (o) | R>N | 9025 | 440.48 | 440.52 | 10.515 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 455.37 | C4Ar.1n (t) | N>R | 9230 | 455.20 | 455.54 | 7.254 | The reversal boundary is identical to that given by Shipboard Scientific Party (1999a). | ||
| 480.03 | C4Ar.1n (o) | R>N | 9308 | 479.90 | 480.15 | 31.609 | |||
| 515.00 | C4Ar.2n (t) | N>R | 9580 | 499.24 | 517.38 | 12.858 | The reversal C4Ar.2n (t) is arbitrarily placed near the top of Core 178-1095B-48X to better agree with logging estimate. |