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Rahman, Abdur; Wang, Liang-Chi; Kashima, Kaoru; Li, Hong-Chun; Chen, Huei-Fen; Yang, Tien-Nan (2025): Geochemical elements from DH-7B sediment core from the Dahu Lake, Ilan Plain [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982474, In: Rahman, A et al. (2025): Typhoon and climate history of northeastern Taiwan during mid to late Holocene: inferred through the Dahu Lake sediment core, Ilan Plain [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.982469

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Published: 2025-05-16DOI registered: 2025-06-14

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Abstract:
A 35-meter-long sediment core (DH-7B) was retrieved from Dahu Lake using a stainless-steel pipe mounted on a floating platform. The core was subsampled at 5-cm intervals with 1-cm thickness for diatom, stable isotope, and trace element analyses. For trace element analysis, dry sediment samples (0.5 g) were collected at 2-cm intervals and leached with 10 mL of 0.5N HCl. The resulting supernatant was analyzed for Ca, Mg, Sr, Ba, K, Na, Li, Fe, Mn, Al, Zn, and Cu using inductively coupled plasma optical emission spectrometry (ICP-OES)., and Pb.
Keyword(s):
Diatom; Geochemistry; Stable isotope
Coverage:
Latitude: 24.739200 * Longitude: 121.689300
Date/Time Start: 2008-01-01T14:00:00 * Date/Time End: 2008-01-01T14:00:00
Minimum DEPTH, sediment/rock: 0.04 m * Maximum DEPTH, sediment/rock: 34.17 m
Event(s):
DH-7B (Dahu Lake) * Latitude: 24.739200 * Longitude: 121.689300 * Date/Time: 2008-01-01T14:00:00 * Elevation: 15.7 m * Location: Taiwan * Method/Device: Stainless steel corer
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3420 data points

Data

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


Depth sed [m]

Cal age [ka BP]

K [mg/kg]

Mg [mg/kg]

Na [mg/kg]

Sr [mg/kg]

Ti [mg/kg]

Al [mg/kg]

Fe [mg/kg]
10 
K/Na
0.04-0.043270389221212700.729913.302.93
0.09-0.022117195816262666.768745.182.02
0.14-0.00272224010252492.327077.781.80
0.180.0196425309262277.227705.602.13
0.230.0407523498222412.588331.691.53
0.280.0607347268173286.2113050.682.81
0.340.0817031519222166.299339.951.37
0.390.1026412419201847.296583.931.56
0.430.1224116409191702.038000.521.02
0.480.14374214111282227.348956.661.80
0.540.17175295510251833.879453.591.36
0.580.20278156010291761.836975.141.30
0.640.233111716914482934.3910740.361.61
0.690.264160736717555046.1012938.262.39
0.730.29441378819142883.6815514.690.47
0.790.325191663162734824.5035109.8511.94
0.830.356120219392334296.0826391.983.08
0.890.387189710202334758.6038143.159.45
0.940.418155379582844668.3130093.422.67
0.980.449129556152144055.6325248.788.60
1.030.467148705212245141.7433972.647.05
1.070.476148383482243214.8627024.503.08
1.120.488148624402633421.6534316.273.70
1.180.500116519182522497.7128114.796.44
1.230.512142588363222922.2530789.283.94
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1.320.5369926943181834.158091.401.05
1.380.547165598272632994.2226728.786.11
1.430.559197655362933137.8230133.975.47
1.480.571199675493333096.6529515.364.06
1.520.580190593663233063.9226361.082.88
1.570.586187544703532984.9924772.242.67
1.620.592101446173321892.0621727.565.94
1.680.598191755563433583.1929942.043.41
1.730.604198714363533544.9130734.065.50
1.770.610185734523633500.4929929.543.56
1.820.615181673353533352.1828438.965.17
1.880.621141596313422716.5324300.904.55
1.930.627117483163422275.6321333.997.31
1.980.633119436153822232.0522290.827.93
2.020.640126504103922410.9621555.6312.60
2.080.647166302192533466.8522203.728.74
2.120.653170660373722891.8420135.724.59
2.170.660145570333622636.4418554.384.39
2.230.667149634333922962.5522579.134.52
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2.670.731213496393633678.8620355.535.46
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2.770.746201546393623630.5520933.295.15
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3.120.795187724393233359.5125997.994.79
3.170.801195818533253708.6126627.833.68
3.230.807164137432043399.0619455.163.81
3.270.814196767423343267.6026255.284.67
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3.380.826214489762643622.1820965.422.82
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