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Found 30 datasets

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Data compilation of core Co1240

Figure of geochemical, sedimentological, pollen, diatom, and ostracod data of core Co1240 from Lake Yoa/ Chad
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XRF scanning results core Co1240

Elemental composition in 2 mm resolution derived by XRF scanning of the core composite of core Co1240 from Lake Yoa/Chad. age 0-10,227 cal. yr BP depth [m] 0-16.18 Parameters: age [cal yrs BP] depth [m] kcps total counts [counts] MSE maximum square error Al [counts] Si [counts] P [counts] S [counts] Cl [counts] Ar [counts] K [counts] Ca [counts] Ti [counts] V [counts] Mn [counts] Fe [counts] Mn/Fe [counts] Ni [counts] Cu [counts] Zn [counts] Br [counts] Rb ...
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Varve counting vs 14C of core Co1240

Varve counting results and 14C dates of the core composite of core Co1240 from Lake Yoa/Chad. age 0-10,848 cal. yr BP depth [m] 0-16.25 depth [m] n no of counted slide x1 [counts] counts per slide of run 1 x2 [counts] counts per slide of run 2 x3 [counts] counts per slide of run 3 mean [counts] mean of 3 counting runs cumumlated mean [counts] aumulated mean age [cal yrs BP] mean varve age Min (a) [cal yrs BP] min SD Max (a) [cal yrs BP] max SD 14C (a) [cal yrs BP] ...
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Pollen data core Co1240

Pollen data of cores OUNIANGA 03/04 and Co1240 from Lake Yoa/Chad. Parameter: age [years cal BP] according to age-depth model of cor OU03/04 age new [years cal BP] adjusted based on age-depth model of core Co1240 Quercus [%] Pinus [%] Phoenix [%] Chenopodium/Amaranthus type [%] Aerva/Cornulaca type [%] Artemisia [%] Brassicaceae undiff. [%] Acacia [%] Salvadoraceae [%] Capparidaceae [%] Blepharis-type [%] Boerhavia-type [%] Tribulus [%] Balanites [%] ...
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Magnetic susceptibility of core Co1240

Magnetic susceptibility data of the core composite of core Co1240 from Lake Yoa/Chad derived by MSCL scanning. age 0-10,227 cal. yr BP depth [m] 0-16.18 Parameters: age [cal yrs BP] composite depth [m] MS [K] Geotek MSCl with Bartington MS2/MS2E MS/dry [rt] magnetic susceptibility normalized by dry mass MS/dry.CaCO3 [rt] magnetic susceptibility normalized by carbonate content X [m3/kg] mass magnetic susceptibility
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Grain-size data of core Co1240

Grain-size fractions of the core composite of core Co1240 from Lake Yoa/Chad. age 0-10,254 cal. yr BP depth [m] 0-16.185 Parameters: age [cal yrs BP] depth [m] sand [Vol%] >63 µm Micromeritics DigiSizer 5200 mud [Vol%] <63 µm Micromeritics DigiSizer 5200 medium sand [Vol%] 250-500 µm Micromeritics DigiSizer 5200 fine sand [Vol%] 125-250 µm Micromeritics DigiSizer 5200 v fine sand [Vol%] 63-125 µm Micromeritics DigiSizer 5200 v coarse silt [Vol%] 32-63 µm Micromeritics DigiSizer...
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Depth of core segments Co1240

Depth of core segments seleted to compile the core composite of core Co1240 from Lake Yoa/Chad. age 0-10,900 cal. yr BP depth [m] 0-16.18
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Diatom data of core Co1240

Diatom percentages of core Co1240 from Lake Yoa/Chad. age 0-10,283 cal. yr BP depth [m] 0-16.1 Parameters: Parameter(s): age [cal yrs BP] depth [m] Amphora coffeaeformis [%] Anomoeoneis sphaerophoro spp [%] Rhopalodia gibba/gibberula spp. [%] subsum [%] Nitzschia frustulum spp. [%] Nitzschia palea spp. [%] sum benthics [%] Craticula el-kab [%] Campylodiscus spp. [%] Chaetoceros sp. [%] sum benthic & saline [%] Aulacoseira granulata spp. [%] Urosolenia (1 stekel) [%] ...
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Composite profile core Co1240

Depth of core segments seleted to compile the core composite of core Co1240 from Lake Yoa/Chad. Parameter(s): core segment Section depth composite depth Top (cm) Bottom (cm) Top (m) Bottom (m) Co1240-1 I 5,9 41,1 0,002 0,354 Co1240-2 II 15,9 91,9 0,356 1,116 Co1240-3 I 2,4 90,8 1,548 2,432 Co1240-3 II 3,5 98,1 2,486 3,432 Co1240-3 III 1,1 80,9 3,454 4,252 Co1240-4 I 50 91,6 4,254 4,67 Co1240-4 II 1,6 98,4 4,694 5,662 Co1240-4 III 1,7 34,9 5,692 6,024 Co1240-5 I 5 91,8 6,026 6,894 ...
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Color data of core Co1240

Color data derived from color spectrophotometer measurements of the core composite of core Co1240 from Lake Yoa/Chad. Parameters: age [cal yrs BP] composite depth [m] Color, *L  Gretagmacbeth SpectrolinoTM  spectrophotometer Color, *a  Gretagmacbeth SpectrolinoTM  spectrophotometer Color, *b  Gretagmacbeth SpectrolinoTM  spectrophotometer Color, X  Gretagmacbeth SpectrolinoTM  spectrophotometer Color, Y  Gretagmacbeth SpectrolinoTM  spectrophotometer Color, Z  Gretagmacbeth...
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CNS results of core Co1240

Biogeochemical results of the core composite of core Co1240 from Lake Yoa/Chad. age 0-10,150 cal. yr BP depth [m] 0-16.165 Parameter(s): age [cal yrs BP] composite depth [m] CaCO3 (calc) [weight %] Carbonate content calculated from Total inorganic carbon content TOC [weight %] Total organic carbon DimaTOC 100 TN [weight %] Total notrogen EA Vario Micro cube TC [weight %] Total carbon EA Vario Micro cube TS [weight %] Total sulfur EA Vario Micro cube
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Analyzing two-dimensional effects in central loop transient electromagnetic sounding data using a semi-synthetic tipper approach doi

We present a simple and feasible approach to analyze and identify two dimensional (2D) effects in central loop transient electromagnetic (TEM) sounding data and the correspondingly derived quasi 2D conductivity models. The proposed strategy is particularly useful to minimize interpretation errors. It is based on the calculation of a semi-synthetic TEM-tipper at each sounding and for each observational transient time point. The semi-synthetic TEM-tipper is derived from the measured vertical component of the...
Keywords: GQT2
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