Wu, Jiawang; Liu, Zhifei; Zhou, Chao (2022): Clay mineral assemblages in sediment surface samples in the Western Pacific Warm Pool [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.946133, In: Wu, J et al. (2022): Late Quaternary clay mineral assemblages in the Western Pacific Warm Pool [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.946134
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Published: 2022-07-07 • DOI registered: 2022-08-06
Abstract:
Clay mineralogy data of late-Quaternary marine sediment cores in the western equatorial Pacific are presented here. These include core KX21-2 collected on the Ontong Java Plateau (downcore profile over the past 380 ka), as well as cores KX10-1, KX12-1, KX13-1 and KX15-2 collected off the northern coast of Papua New Guinea (surface samples only). All the five cores were retrieved a giant gravity corer onboard R/V Kexue-1 during the KX08-973 cruise in 2008/2009. The Clay minerals were identified by X-ray diffraction (XRD) using a PANalytical X'Pert Pro diffractometer, with a 0.03°2Q/s rate under CuKa radiation and Ni filter, at Tongji University. The analysis was conducted on oriented mounts of non-calcareous, clay-sized particles (<2 mm). The XRD runs were performed under three conditions: untreated, glycolated (in ethylene-glycol vapor for 24 h), and heated (490 °C for 2 h). Identification of clay minerals was done according to a comprehensive comparison of the three XRD diagrams. For the main clay-mineral groups, the relative abundances were calculated by measuring the peak areas on glycolated curve using MacDiff 4.2 software. For more details see the reference paper.
Keyword(s):
Related to:
Wu, Jiawang; Liu, Zhifei; Zhou, Chao (2012): Late quaternary glacial cycle and precessional period of clay mineral assemblages in the western pacific warm pool. Chinese Science Bulletin, 57(28-29), 3748-3760, https://doi.org/10.1007/s11434-012-5277-x
Funding:
National Natural Science Foundation of China (NSFC), grant/award no. 40925008: Nanhai clastic sediment source area, transport and deposition
National Natural Science Foundation of China (NSFC), grant/award no. 91128206: Observation and Study on Bottom Current Flow and Sedimentation Process in Northeast China Sea
Coverage:
Median Latitude: -1.050700 * Median Longitude: 143.822032 * South-bound Latitude: -4.121670 * West-bound Longitude: 131.841670 * North-bound Latitude: 3.338330 * East-bound Longitude: 157.981830
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.005 m
Event(s):
KX10-1 * Latitude: 3.338330 * Longitude: 131.841670 * Elevation: -2216.0 m * Campaign: KX08-973 * Basis: Kexue * Method/Device: Core (CORE)
KX12-1 * Latitude: -1.813330 * Longitude: 143.668330 * Elevation: -1568.0 m * Campaign: KX08-973 * Basis: Kexue * Method/Device: Core (CORE)
KX13-1 * Latitude: -1.240000 * Longitude: 140.015000 * Elevation: -2987.0 m * Campaign: KX08-973 * Basis: Kexue * Method/Device: Core (CORE)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Wu, Jiawang | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Wu, Jiawang | Geocode | |
| 3 | Depth, top/min | Depth top | m | Wu, Jiawang | ||
| 4 | Depth, bottom/max | Depth bot | m | Wu, Jiawang | ||
| 5 | Smectite | Sme | % | Wu, Jiawang | PANalytical X'Pert PRO diffractometer (XRD) | |
| 6 | Illite | Ill | % | Wu, Jiawang | PANalytical X'Pert PRO diffractometer (XRD) | |
| 7 | Kaolinite | Kln | % | Wu, Jiawang | PANalytical X'Pert PRO diffractometer (XRD) | |
| 8 | Chlorite | Chl | % | Wu, Jiawang | PANalytical X'Pert PRO diffractometer (XRD) | |
| 9 | Feldspar/Quartz ratio | Fsp/Qz | Wu, Jiawang | |||
| 10 | Smectite crystallinity | Sme cryst | d2Theta | Wu, Jiawang | ||
| 11 | Illite crystallinity | Ill cryst | d2Theta | Wu, Jiawang | ||
| 12 | Illite chemistry index | Ill chem index | Wu, Jiawang |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
50 data points
Data
| 1 Event | 2 Depth sed [m] | 3 Depth top [m] | 4 Depth bot [m] | 5 Sme [%] | 6 Ill [%] | 7 Kln [%] | 8 Chl [%] | 9 Fsp/Qz | 10 Sme cryst [d2Theta] | 11 Ill cryst [d2Theta] | 12 Ill chem index |
|---|---|---|---|---|---|---|---|---|---|---|---|
| KX10-1 | 0.005 | 0.00 | 0.01 | 84.2 | 6.4 | 2.8 | 6.6 | 5.662 | 1.382 | 0.162 | 0.231 |
| KX12-1 | 0.005 | 0.00 | 0.01 | 61.2 | 17.0 | 16.2 | 5.7 | 6.344 | 0.986 | 0.179 | 0.318 |
| KX13-1 | 0.005 | 0.00 | 0.01 | 67.6 | 14.0 | 6.4 | 12.0 | 8.484 | 0.913 | 0.204 | 0.374 |
| KX15-2 | 0.005 | 0.00 | 0.01 | 92.3 | 2.7 | 3.8 | 1.2 | 11.962 | 0.760 | 0.222 | 0.342 |
| KX21-2 | 0.005 | 0.00 | 0.01 | 71.0 | 8.7 | 6.5 | 13.8 | 6.499 | 0.792 | 0.179 | 0.340 |