Metadata Overview for Tephra "CH22-NL-T1"

Below is all the metadata supplied for this sample. Download basic metadata.

General
IGSN:10273/GF1211S--C
Related Resource:References Dataset "https://tiendadigital.sernageomin.cl/es/geologia-basica/1218-2013-cartas-bahia-isla-blanca-y-taltal-region-de-antofagasta-escala-1-100000.html" (URL)
Lab IDs:CH22-NL-T1_top, CH22-NL-T1_middle, CH22-NL-T1_bottom, TPM-094-1, TPM-094-2
Comment:Same as tephra TPM-094, dated at 3.9±0.8 Ma and described in Cartas Bahía Isla Blanca y Taltal. Región de Antofagasta. https://tiendadigital.sernageomin.cl/es/geologia-basica/1218-2013-cartas-bahia-isla-blanca-y-taltal-region-de-antofagasta-escala-1-100000.html
Responsible Party
Creator:Niklas Leicher (n.leicher@uni-koeln.de)
Collection Details
Collection Site:CH22-NL-T1
Sample Collection Method:Manual
Sample Collection Date:27.09.2022
Sampling Method:Channel through selected sub-interval of stratum or layer
Physical Details
Resource Type:Individual Sample
Sample Access:Accessible
Material:Tephra
Depositional Process:Tephra Fall
Analysis Details
Subsample Count:3
Subsample Info:1-2 m thick, subhorizontal tephra whitish ash with biotites, no evidence for interal grainsize variations (bedding, grading) Sample 1/3 (TOP) 50-60 cm thickness, powdery Sample 2/3 (MIDDLE) 5-10 cm thickness, lithified Sample 3/3 (bottom) >1 m thickness powdery unit
Major/Minor Element Analysis Method:None
Trace Element Analysis Method:None
Isotope Analysis Method:None
Dating Method:40Ar/39Ar, Biotite
Chronology
Chronological Analysis 1:
This is the best age estimate for this sample.
Dating Method40Ar/39Ar, Biotite (Stepwise Heating)
LabSernageomin
Age Range3.1 - 4.7 Ma
Best Age Estimate3.9 (Uncertainty: 0.8)
Age Calculationcombined isochron
Uncertainty Typeunknown
Xenocryst PresenceNot determined
Stratigraphy
Erathem:Cenozoic
System:Neogene
Series:Pliocene
Stage:Zanclean
Age Range:3.1 - 4.7 Ma