Concentration of branched glycerol dialkyl glycerol tetraethers in settling particles of Lake Chala from September 2010- January 2015
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2020
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| _version_ | 1867170102338650112 |
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| author | Peterse, Francien van Bree, Loes G J Baxter, Allix J De Crop, Wannes van Grinsven, Sigrid Villanueva, Laura Verschuren, Dirk Sinninghe Damsté, Jaap S |
| author_facet | Peterse, Francien van Bree, Loes G J Baxter, Allix J De Crop, Wannes van Grinsven, Sigrid Villanueva, Laura Verschuren, Dirk Sinninghe Damsté, Jaap S |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Settling particles in the water column of Lake Chala, a small (4.2 km2), deep (~90 m), and permanently stratified tropical crater lake at ~880 m above sea level in East Africa (3°19'S, 37°42'E) were collected monthly at 35 m water depth from August 2010 to January 2015 from mid-lake position. The collected material was allowed to settle and stored frozen after decantation of excess water. Prior to analysis, the samples were thawed, filtered over pre-combusted glass fibre filters, and the frozen and freeze dried. Bulk mass flux is expressed as mg m-2 d-1. The concentration of branched glycerol dialkyl glycerol tetraethers (brGDGTs) in the settling particles was analyzed using ultra high performance liquid chromatography-mass spectrometry, separating 5-methyl and 6-methyl brGDGT isomers. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_922780 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Concentration of branched glycerol dialkyl glycerol tetraethers in settling particles of Lake Chala from September 2010- January 2015 Peterse, Francien van Bree, Loes G J Baxter, Allix J De Crop, Wannes van Grinsven, Sigrid Villanueva, Laura Verschuren, Dirk Sinninghe Damsté, Jaap S Branched glycerol dialkyl glycerol tetraether, flux, Ia; Branched glycerol dialkyl glycerol tetraether, flux, Ib; Branched glycerol dialkyl glycerol tetraether, flux, Ic; Branched glycerol dialkyl glycerol tetraether, flux, IIa; Branched glycerol dialkyl glycerol tetraether, flux, IIa'; Branched glycerol dialkyl glycerol tetraether, flux, IIb; Branched glycerol dialkyl glycerol tetraether, flux, IIb'; Branched glycerol dialkyl glycerol tetraether, flux, IIc; Branched glycerol dialkyl glycerol tetraether, flux, IIc'; Branched glycerol dialkyl glycerol tetraether, flux, IIIa; Branched glycerol dialkyl glycerol tetraether, flux, IIIa'; Branched glycerol dialkyl glycerol tetraether, flux, IIIb; Branched glycerol dialkyl glycerol tetraether, flux, IIIb'; Branched glycerol dialkyl glycerol tetraether, flux, IIIc; Branched glycerol dialkyl glycerol tetraether, flux, IIIc'; Date; Date/time end; Date/time start; Duration, number of days; Hexamethylated branched glycerol dialkyl glycerol tetraether, flux, sum; Isomer ratio; Lake_Chala; Lake Chala, East Africa; Month; MULT; Multiple investigations; Pentamethylated branched glycerol dialkyl glycerol tetraether, flux, sum; Tetramethylated branched glycerol dialkyl glycerol tetraether, flux, sum; Total mass, flux per day; Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130) Settling particles in the water column of Lake Chala, a small (4.2 km2), deep (~90 m), and permanently stratified tropical crater lake at ~880 m above sea level in East Africa (3°19'S, 37°42'E) were collected monthly at 35 m water depth from August 2010 to January 2015 from mid-lake position. The collected material was allowed to settle and stored frozen after decantation of excess water. Prior to analysis, the samples were thawed, filtered over pre-combusted glass fibre filters, and the frozen and freeze dried. Bulk mass flux is expressed as mg m-2 d-1. The concentration of branched glycerol dialkyl glycerol tetraethers (brGDGTs) in the settling particles was analyzed using ultra high performance liquid chromatography-mass spectrometry, separating 5-methyl and 6-methyl brGDGT isomers. |
| title | Concentration of branched glycerol dialkyl glycerol tetraethers in settling particles of Lake Chala from September 2010- January 2015 |
| topic | Branched glycerol dialkyl glycerol tetraether, flux, Ia; Branched glycerol dialkyl glycerol tetraether, flux, Ib; Branched glycerol dialkyl glycerol tetraether, flux, Ic; Branched glycerol dialkyl glycerol tetraether, flux, IIa; Branched glycerol dialkyl glycerol tetraether, flux, IIa'; Branched glycerol dialkyl glycerol tetraether, flux, IIb; Branched glycerol dialkyl glycerol tetraether, flux, IIb'; Branched glycerol dialkyl glycerol tetraether, flux, IIc; Branched glycerol dialkyl glycerol tetraether, flux, IIc'; Branched glycerol dialkyl glycerol tetraether, flux, IIIa; Branched glycerol dialkyl glycerol tetraether, flux, IIIa'; Branched glycerol dialkyl glycerol tetraether, flux, IIIb; Branched glycerol dialkyl glycerol tetraether, flux, IIIb'; Branched glycerol dialkyl glycerol tetraether, flux, IIIc; Branched glycerol dialkyl glycerol tetraether, flux, IIIc'; Date; Date/time end; Date/time start; Duration, number of days; Hexamethylated branched glycerol dialkyl glycerol tetraether, flux, sum; Isomer ratio; Lake_Chala; Lake Chala, East Africa; Month; MULT; Multiple investigations; Pentamethylated branched glycerol dialkyl glycerol tetraether, flux, sum; Tetramethylated branched glycerol dialkyl glycerol tetraether, flux, sum; Total mass, flux per day; Ultra-high-performance liquid chromatography (UHPLC; Agilent 1260 Infinity) coupled to a single quadrupole mass detector (Agilent 6130) |
| url | https://doi.org/10.1594/PANGAEA.922780 |