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Hasberg, Ascelina; Bijaksana, Satria; Held, Peter; Just, Janna; Melles, Martin; Morlock, Marina A; Opitz, Stephan; Russell, James M; Vogel, Hendrik; Wennrich, Volker (2020): Non-destructive particle analyses from different surface sediment samples of Lake Towuti, Indonesia [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.914843

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Published: 2020-04-16 • DOI registered: 2020-06-02

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Abstract:
At the University of Cologne, Germany, a subsample was taken from one aliquot and used to produce smear slides for identification of sedimentary components using transmitted light microscopy. On selected samples, sponge spicules and diatom frustules were additionally investigated using a Zeiss Gemini Sigma 300VP scanning electron microscope (SEM; Carl Zeiss AG, Oberkochen, Germany). Furthermore, some magnetic mineral grains were identified with energy dispersive X-ray spectroscopy (EDX) of the Sigma SEM system.
Based on smear slide analyses, a set of 40 samples that contain sponge spicules, diatoms and/or tephra particles were selected for automated, non-destructive particle image analyses using a dynamic imaging system (Benchtop B3 Series VS FlowCAM®; Fluid Imaging Technologies, Inc., Scarborough, ME, USA) to quantify the abundance of these particles. Aliquots of wet bulk samples were treated with hydrogen peroxide (H2O2; 30%) for seven days at room temperature to remove organic matter (OM) and disaggregate the siliceous biogenic particles, and were subsequently sieved with 25 and 80 µm meshes. The pre-treated sample fractions were diluted with deionized water (samples <25 µm) or polyvinyl pyrrolidone (PVP, 2 %; samples 25 to 80 µm and >80 µm). Particle recording in the <25 µm and 25 to 80 µm fractions was carried out using a 100 µm flowcell, a 10x objective lens with a collimator, and a 1 ml syringe-pump (flow rate 0.3 ml/min), whereas the >80 µm fraction was recorded using a 300 µm flowcell, a 4x objective lens without collimator, and a 5 ml syringe-pump (flow rate 0.6 ml/min). Data were acquired using the software VisualSpreadsheet (Fluid Imaging Technologies, Inc., Scarborough, ME, USA) until 10.000 images were recorded or 30 ml of the sample was investigated. An automated catalogue based on training sets developed for sponge spicules, diatoms and tephra particles was compiled to differentiate and group components with comparable characteristics in the measured sample fractions.
Keyword(s):
Indo-Pacific Warm Pool (IPWP); Lake Towuti; modern sedimentation; provenance analysis; Redox conditions; tropical lake
Related to:
Hasberg, Ascelina; Bijaksana, Satria; Held, Peter; Just, Janna; Melles, Martin; Morlock, Marina A; Opitz, Stephan; Russell, James M; Vogel, Hendrik; Wennrich, Volker (2019): Modern sedimentation processes in Lake Towuti, Indonesia, revealed by the composition of surface sediments. Sedimentology, 66(2), 675-698, https://doi.org/10.1111/sed.12503
Coverage:
Median Latitude: -2.759479 * Median Longitude: 121.512143 * South-bound Latitude: -2.932300 * West-bound Longitude: 120.951200 * North-bound Latitude: -2.652500 * East-bound Longitude: 121.664700
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
Lake_Towuti-01  * Latitude: -2.668200 * Longitude: 121.420600 * Lake water depth: 6.3 m
Lake_Towuti-02  * Latitude: -2.652500 * Longitude: 121.441000 * Lake water depth: 5.4 m
Lake_Towuti-03  * Latitude: -2.669200 * Longitude: 121.454800 * Lake water depth: 48.4 m
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventHasberg, Ascelina
2 Latitude of eventLatitudeHasberg, Ascelina
3 Longitude of eventLongitudeHasberg, Ascelina
4 Depth, bathymetricBathy depthmHasberg, AscelinaLake water depth
5 Station labelStationHasberg, AscelinaSediment surface sample number
6 DEPTH, sediment/rockDepth sedmHasberg, AscelinaGeocode
7 ParticlesParticles#Hasberg, AscelinaBenchtop B3 Series VS FlowCAMTephra particle per 1000 particle
8 ParticlesParticles#Hasberg, AscelinaBenchtop B3 Series VS FlowCAMDiatom particle per 1000 particle
9 ParticlesParticles#Hasberg, AscelinaBenchtop B3 Series VS FlowCAMSpicule particle per 1000 particle
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
288 data points

Data

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

1 
Event		2 
Latitude		3 
Longitude		4 
Bathy depth [m]
(Lake water depth)		5 
Station
(Sediment surface sample number)		6 
Depth sed [m]		7 
Particles [#]
(Tephra particle per 1000 part...)		8 
Particles [#]
(Diatom particle per 1000 part...)		9 
Particles [#]
(Spicule particle per 1000 par...)
Lake_Towuti-01 -2.6682121.42066.3102.4428159010.9623214152.590865349
Lake_Towuti-02 -2.6525121.44105.4200.5940299991.4850749964.801742488
Lake_Towuti-03 -2.6692121.454848.4300.6491258440.2596503383.505279557
Lake_Towuti-04 -2.6875121.452697.5400.5705727120.0000000000.499251123
Lake_Towuti-05 -2.6547121.477547.1501.1907799610.25516713423.135153530
Lake_Towuti-06 -2.6731121.48247.560
Lake_Towuti-07 -2.6712121.454862.4700.8044744100.0766166108.619368679
Lake_Towuti-08 -2.6679121.521849.0801.5300117690.0784621424.119262456
Lake_Towuti-09 -2.6788121.526696.490
Lake_Towuti-10 -2.6693121.517872.6100
Lake_Towuti-11 -2.6828121.512883.4110
Lake_Towuti-12 -2.6943121.5210124.7120
Lake_Towuti-13 -2.6836121.5452140.0130
Lake_Towuti-14 -2.6883121.5335125.41400.9453710580.0000000000.371395773
Lake_Towuti-15 -2.6743121.5569171.2150
Lake_Towuti-16 -2.6853121.5635174.91602.2265992980.0428192170.899203563
Lake_Towuti-17 -2.6957121.5851195.51700.3455823060.0767960681.151941021
Lake_Towuti-18 -2.6655121.52813.5180
Lake_Towuti-19 -2.6935121.4868123.71900.4355969860.0000000001.001873067
Lake_Towuti-20 -2.7015121.443975.62000.5333333330.0333333337.966666667
Lake_Towuti-21 -2.7048121.4816144.72100.4780876490.0398406370.677290837
Lake_Towuti-22 -2.7019121.5592171.42202.6212319790.0000000001.048492792
Lake_Towuti-23 -2.6778121.5869177.92300.9257395850.0402495471.046488227
Lake_Towuti-24 -2.6753121.6384133.3240
Lake_Towuti-25 -2.6976121.6599129.2250
Lake_Towuti-26 -2.7168121.6272137.7260
Lake_Towuti-27 -2.7274121.656959.32700.5428428260.08351428118.832470350
Lake_Towuti-28 -2.7114121.6073194.52800.5191372880.0471942992.926046534
Lake_Towuti-29 -2.7146121.5817172.12900.3770423130.0000000002.304147465
Lake_Towuti-30 -2.7079121.5403147.6300
Lake_Towuti-31 -2.7113121.5180147.4310
Lake_Towuti-32 -2.7165121.4949153.73200.9542635130.0000000000.511212596
Lake_Towuti-33 -2.7173121.4666100.4330
Lake_Towuti-34 -2.7182121.5593141.1340
Lake_Towuti-35 -2.7246121.5358154.03501.3856412920.0000000000.736121936
Lake_Towuti-36 -2.7265121.5089157.7360
Lake_Towuti-37 -2.7315121.4810146.5370
Lake_Towuti-38 -2.7376121.456178.53800.7816978480.0000000004.585960707
Lake_Towuti-39 -2.6636121.6647101.1390
Lake_Towuti-40 -2.7525121.4642101.2400
Lake_Towuti-41 -2.7428121.4971130.14100.6880240810.0000000003.010105354
Lake_Towuti-42 -2.7397121.5245161.8420
Lake_Towuti-43 -2.7338121.5551141.6430
Lake_Towuti-44 -2.7316121.5799126.8440
Lake_Towuti-45 -2.7307121.607981.84500.5923819680.0592381972.251051478
Lake_Towuti-46 -2.7447121.615053.84600.3489183530.0581530597.908816004
Lake_Towuti-47 -2.7457121.596073.94701.1784407370.0000000001.860695900
Lake_Towuti-48 -2.7583121.601792.24802.1146908820.12439358115.176016920
Lake_Towuti-49 -2.7583121.593525.64900.9448548368.84727710010.565194980
Lake_Towuti-50 -2.7847121.59204.5500
Lake_Towuti-51 -2.7953121.57364.45101.6008732040.5821357101.855557577
Lake_Towuti-52 -2.7771121.573932.9520
Lake_Towuti-53 -2.7568121.571773.25300.9568767540.0000000004.337841286
Lake_Towuti-54 -2.7438121.5633129.6540
Lake_Towuti-55 -2.7555121.540596.05500.2829921710.0000000003.584567494
Lake_Towuti-56 -2.7505121.5123134.9560
Lake_Towuti-57 -2.7771121.586158.95701.4464304160.0000000003.375004305
Lake_Towuti-58 -2.7634121.4818127.6580
Lake_Towuti-59 -2.7862121.4781112.05900.3333333330.0000000002.000000000
Lake_Towuti-60 -2.8155121.4670134.3600
Lake_Towuti-61 -2.8262121.4373117.6610
Lake_Towuti-62 -2.8561121.4444117.5620
Lake_Towuti-63 -2.8740121.4220119.6630
Lake_Towuti-64 -2.8914121.404577.5640
Lake_Towuti-65 -2.9320121.390419.16501.2308954760.4102984921.538619346
Lake_Towuti-66 -2.9216121.409540.7660
Lake_Towuti-67 -2.9052121.4313120.8670
Lake_Towuti-68 -2.8845121.4481168.8680
Lake_Towuti-69 -2.8625121.4798177.0690
Lake_Towuti-70 -2.8366121.4837252.0700
Lake_Towuti-71 -2.8074121.4990132.0710
Lake_Towuti-72 -2.7806121.513071.67200.5246839970.0000000006.582399237
Lake_Towuti-73 -2.9145121.456287.17300.4352451880.0000000001.886062482
Lake_Towuti-74 -2.8981121.478693.37400.0985270210.1477905325.960884773
Lake_Towuti-75 -2.8833121.503950.6750
Lake_Towuti-76 -2.8574121.4986160.0760
Lake_Towuti-77 -2.8488121.534453.47700.5121420340.1280355096.231061414
Lake_Towuti-78 -2.8322121.5145119.0780
Lake_Towuti-79 -2.8257121.554946.87901.2094509960.0431946784.665025269
Lake_Towuti-80 -2.8103121.532899.8800
Lake_Towuti-81 -2.8372121.4600168.5810
Lake_Towuti-82 -2.9274120.951236.18200.6758786422.77861219619.300090120
Lake_Towuti-83 -2.9323121.40472.8830
Lake_Towuti-84 -2.8671121.54069.68400.7347924211.8894662262.466803128