Sample: UT1592
Sample ID: | UT1592 [1] [2] |
Station ID: | Midnight_Dome_Terrace |
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Collector: | Froese, D. G. |
Date sampled: | |
Sample type 1: | Tephra Fall |
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Text Description: | In the lowermost interglacial silt of the Midnight Dome Loess; silt is reworked, about 0.3 m thick, and contains very thin pods (<5 mm) of the Mosquito Gulch tephra (UT1592-Preece et al.2000 is cited by Westgate et al. 2001 for more sample information; however, sample UT1592 does not appear to be mentioned in Preece et al. 2000). Type I beds have a low crystal content, abundant bubble-wall glass shards, pumice with large vesicles, and very small amounts of brown glass. Feldspar, orthopyroxene, and clinopyroxene are abundant with minor amounts of amphibole, magnetite, ilmenite, apatite, and zircon. From Preece et al. (2011): n.d. on deposit thickness; bubble-wall shards and pumice; in cryoturbated silt overlying bedded sand; ∼1 m above basal gravel and sand; field name DOA97-16. Sample collected by A. Duk-Rodkin, 1997. |
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