PANGAEA_914843
Non-destructive particle analyses from different surface sediment samples of Lake Towuti, Indonesia
Hasberg, Ascelina; Bijaksana, Satria; Held, Peter; Just, Janna; Melles, Martin; Morlock, Marina A; Opitz, Stephan; Russell, James M; Vogel, Hendrik; Wennrich, Volker
Non-destructive particle analyses from different surface sediment samples of Lake Towuti, Indonesia
2020-04-16
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.914843
Investigator
Ascelina
Hasberg
hasberg.ascelina@gmail.com
Earth Science
Event label
Latitude of event
Longitude of event
Depth, bathymetric
Station label
DEPTH, sediment/rock
Particles
geoscientificInformation
Indo-Pacific Warm Pool (IPWP)
Lake_Towuti-01
Lake_Towuti-02
Lake_Towuti-03
Lake_Towuti-04
Lake_Towuti-05
Lake_Towuti-06
Lake_Towuti-07
Lake_Towuti-08
Lake_Towuti-09
Lake_Towuti-10
Lake_Towuti-11
Lake_Towuti-12
Lake_Towuti-13
Lake_Towuti-14
Lake_Towuti-15
Lake_Towuti-16
Lake_Towuti-17
Lake_Towuti-18
Lake_Towuti-19
Lake_Towuti-20
Lake_Towuti-21
Lake_Towuti-22
Lake_Towuti-23
Lake_Towuti-24
Lake_Towuti-25
Lake_Towuti-26
Lake_Towuti-27
Lake_Towuti-28
Lake_Towuti-29
Lake_Towuti-30
Lake_Towuti-31
Lake_Towuti-32
Lake_Towuti-33
Lake_Towuti-34
Lake_Towuti-35
Lake_Towuti-36
Lake_Towuti-37
Lake_Towuti-38
Lake_Towuti-39
Lake_Towuti-40
Lake_Towuti-41
Lake_Towuti-42
Lake_Towuti-43
Lake_Towuti-44
Lake_Towuti-45
Lake_Towuti-46
Lake_Towuti-47
Lake_Towuti-48
Lake_Towuti-49
Lake_Towuti-50
Lake_Towuti-51
Lake_Towuti-52
Lake_Towuti-53
Lake_Towuti-54
Lake_Towuti-55
Lake_Towuti-56
Lake_Towuti-57
Lake_Towuti-58
Lake_Towuti-59
Lake_Towuti-60
Lake_Towuti-61
Lake_Towuti-62
Lake_Towuti-63
Lake_Towuti-64
Lake_Towuti-65
Lake_Towuti-66
Lake_Towuti-67
Lake_Towuti-68
Lake_Towuti-69
Lake_Towuti-70
Lake_Towuti-71
Lake_Towuti-72
Lake_Towuti-73
Lake_Towuti-74
Lake_Towuti-75
Lake_Towuti-76
Lake_Towuti-77
Lake_Towuti-78
Lake_Towuti-79
Lake_Towuti-80
Lake_Towuti-81
Lake_Towuti-82
Lake_Towuti-83
Lake_Towuti-84
Lake Towuti
modern sedimentation
provenance analysis
Redox conditions
tropical lake
Benchtop B3 Series VS FlowCAM
Complete
-2.9323
-2.6525
120.9512
121.6647
0.0 m (DEPTH, sediment/rock)
0.0 m (DEPTH, sediment/rock)
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
288 data points
text/tab-separated-values
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
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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.914843"!
https://doi.org/10.1111/sed.12503
Modern sedimentation processes in Lake Towuti, Indonesia, revealed by the composition of surface sediments
DIF
9.4
2020-04-16
2026-07-15