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Bertaz, Joffrey; Liu, Zhifei; Colin, Christophe (2024): Clay minerals of sediment core MD18-3569 from the Penghu Canyon in the northeastern South China Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.964249

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Abstract:
This dataset provides clay mineral assemblages of marine sediments over the past 32 kyr at HydroSed Core MD18-3569 on the Penghu Canyon in the northeastern South China Sea. The data include clay mineral assemblages (smectite, illite, chlorite, and kaolinite), illite chemistry index, and illite crystallinity. The samples were collected at 5 cm resolution for the upper 3 m and 2.5 cm resolution for the 3–8 m depth interval at Core MD18-3569 (22°09.30'N, 119°49.24'E; 1320 m water depth) retrieved from the HydroSed cruise aboard the R/V Marion Dufresne in 2018. A total of 381 samples were analyzed at the State Key Laboratory of Marine Geology, Tongji University (Shanghai). Clay minerals were identified on oriented mounts of non-calcareous clay-sized (<2 μm) particles by X-ray diffraction (XRD) using a PANalytical X'Pert PRO diffractometer. Replicate analyses of selected samples gave a precision of ±2% (2σ), and the semi-quantitative evaluation of each clay mineral has an accuracy of ~5%.
Keyword(s):
clay minerals; Core MD18-3569; HydroSed; Marion Dufresne; South China Sea; X-ray diffraction (XRD)
Supplement to:
Bertaz, Joffrey; Liu, Zhifei; Colin, C; Dapoigny, Arnaud; Lin, Andrew T; Li, Y; Jian, Zhimin (accepted): Climatic and environmental impacts on the sedimentation of the SW Taiwan margin since the last deglaciation: geochemical and mineralogical investigations. Paleoceanography and Paleoclimatology
Funding:
National Natural Science Foundation of China (NSFC), grant/award no. 42130407: Mooring observation of deep-sea sediment transport processes in the southern South China Sea and their effects on ocean carbon cycling
National Natural Science Foundation of China (NSFC), grant/award no. 42188102
Coverage:
Latitude: 22.155000 * Longitude: 119.820667
Minimum DEPTH, sediment/rock: 0.045 m * Maximum DEPTH, sediment/rock: 14.995 m
Event(s):
MD18-3569 * Latitude: 22.155000 * Longitude: 119.820667 * Elevation: -1320.0 m * Location: Penghu Canyon, northeastern South China Sea
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
NumberNoLiu, Zhifei
DEPTH, sediment/rockDepth sedmLiu, ZhifeiGeocode
AGEAgeka BPLiu, ZhifeiGeocode
SmectiteSme%Liu, ZhifeiPANalytical X'Pert PRO diffractometer (XRD)
IlliteIll%Liu, ZhifeiPANalytical X'Pert PRO diffractometer (XRD)
ChloriteChl%Liu, ZhifeiPANalytical X'Pert PRO diffractometer (XRD)
KaoliniteKln%Liu, ZhifeiPANalytical X'Pert PRO diffractometer (XRD)
Illite chemistry indexIll chem indexLiu, ZhifeiPANalytical X'Pert PRO diffractometer (XRD)
Illite crystallinityIll crystd2ThetaLiu, ZhifeiPANalytical X'Pert PRO diffractometer (XRD)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2667 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


No

Depth sed [m]

Age [ka BP]

Sme [%]

Ill [%]

Chl [%]

Kln [%]

Ill chem index

Ill cryst [d2Theta]
10.0450.538543440.3310.147
20.1050.7910523530.3330.142
30.1450.848543530.3190.132
40.1950.918543430.3240.171
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211.0452.0910533430.3020.149
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633.0955.1214493240.3270.164
643.1155.1615503230.3200.155
653.1455.2112523340.3240.153
663.1655.2413533040.2790.148
673.1955.2914503240.3200.146
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1846.31511.549553430.3150.156
1856.34511.6012533320.2960.155
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1916.50511.9212513520.3260.154
1926.51511.9420463220.3260.153
1936.54512.0012513440.3250.155
1946.58512.0810523430.3440.155
1956.59512.109543430.3130.152
1966.61512.1412513420.3070.151
1976.64512.2017483140.3370.175
1986.69512.297563430.3220.162
1996.71512.3213523320.3220.151
2006.74512.3711533230.3090.165
2016.76512.407543630.3500.156
2026.79512.4610543420.3190.159
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