| 单词 | pan sand |
| 释义 | > as lemmaspan sand pan sand n. rare (typically in plural) (a) the sand-sized sediment in a mechanical separation or panning device; (b) the sandy bottom of a naturally-formed depression or basin. ΚΠ 1898 Westm. Gaz. 25 Nov. 2/1 Oyster culturists and connoisseurs would..find..giants from the ‘pan sands’. 1950 Georgia Mineral News Let. May (Georgia Geol. Surv.) 73 The pan sands here contain a considerable amount of ilmenite. 1987 Afr. Archaeol. Rev. 5 87 (caption) Geological map of the southern part of the Bir Tarfawi basin. Key:..7. Middle Palaeolithic pan beach line; 8. Middle Palaeolithic pan sands. 1990 Sedimentary Geol. 69 7 An example is given using particle size data from dune ridge crest and pan sands from the Kalahari desert of central southern Africa. 1993 C. L. Hill in F. Wendorf et al. Egypt during Last Interglacial iv. 75/1 The later-stage deposits reflect a period of increased moisture, expansion of the playa and subsequent stabilization of the redeposited pan sands. < as lemmas |
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