کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7440980 | 1483868 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tin isotope fractionation during experimental cassiterite smelting and its implication for tracing the tin sources of prehistoric metal artefacts
ترجمه فارسی عنوان
تجزیه ایزوتوپ قلع در طی ذوب آزمایشی کاسیوتریت و پیگیری آن برای ردیابی منابع قلع صنایع دستی فلزی پیش از تاریخ
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
Although tin recovery on smelting in the field was low (20-30%) due to tin losses to fuming and slag formation, the results indicate that the tin isotope composition is less affected than anticipated from theoretical considerations (Rayleigh fractionation). If cassiterite is completely reduced during the smelting reaction the tin metal becomes enriched in heavy tin isotopes with a fractionation of Î124Snâ¯=â¯0.09-0.18â° (0.02-0.05â° uâ1) relative to the original cassiterite. An estimate of the provenance of the original cassiterite and the potential ore source would still be possible because the variability of tin isotope ratios in tin ore provinces is much larger. If the cassiterite becomes incompletely reduced, however, then fractionation increases significantly up to Î124Snâ¯=â¯0.88â° (0.22â° uâ1) and conclusions on tin sources are limited. Similarly, condensed tin vapours (Î124Snâ¯=â¯1.13â° (0.28â° uâ1)) and slags (Î124Snâ¯=â¯0.42-1.32â° (0.11-0.33â° uâ1)) that are by-products of the smelting process show large fractionation with respect to the original tin ore as well, which makes them unsuitable for provenance studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Archaeological Science - Volume 92, April 2018, Pages 73-86
Journal: Journal of Archaeological Science - Volume 92, April 2018, Pages 73-86
نویسندگان
Daniel Berger, Elin Figueiredo, Gerhard Brügmann, Ernst Pernicka,