globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.epsl.2018.09.019
Scopus记录号: 2-s2.0-85054182020
论文题名:
Cooling rates of lunar orange glass beads
作者: Hui H.; Hess K.-U.; Zhang Y.; Nichols A.R.L.; Peslier A.H.; Lange R.A.; Dingwell D.B.; Neal C.R.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 503
起始页码: 88
结束页码: 94
语种: 英语
英文关键词: cooling rate ; glass transition ; heat capacity ; lunar atmosphere ; Moon ; volcanic glass bead
Scopus关键词: Citrus fruits ; Differential scanning calorimetry ; Free flight ; Glass ; Glass transition ; Granular materials ; Moon ; Specific heat ; Volcanoes ; Cooling rates ; Differential scanning calorimeters ; Diffusion profiles ; Fictive temperatures ; Heat capacity measurements ; Lunar atmospheres ; Volcanic eruptions ; Volcanic glass ; Cooling
英文摘要: It is widely accepted that the Apollo 17 orange glass beads are of volcanic origin. The degree of degassing of the glass beads depends on their cooling rates, so the estimation of volatile contents in the parental magmas of these lunar pyroclastic glasses also depends on the cooling rates. The cooling rate can be estimated using the calorimetric properties of the glass across the glass transition. In this study, a series of heat capacity measurements were carried out on hand-picked lunar volcanic orange glass beads during several cycles of heating to temperatures above their glass transition using a differential scanning calorimeter. The cooling rate of orange glass beads (sample 74220,867) was calculated to be 101 K/min using the correlation between glass cooling rates and fictive temperatures estimated from their heat capacity–temperature paths. This cooling rate is close to the lower end of the range that best fits the diffusion profiles of several volatile species in the glass beads, and at the upper end of the cooling-rate range recorded in glasses quenched subaerially on Earth. The cooling rate is likely to be controlled by the cooling environment (cooling medium) such that the lunar volcanic glass beads could have been cooled in a gaseous medium released from volcanic eruptions on the Moon, but not during “free flight” in vacuum. The existence of a gas medium suggests, in turn, that there may have been at least a short-lived or episodic atmosphere on the early Moon at around 3.5 Ga. © 2018 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109613
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: State Key Laboratory for Mineral Deposits Research, Lunar and Planetary Science Institute, School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu 210023, China; Department of Earth and Environmental Sciences, LMU-University of Munich, Theresienstrasse 41/III, Munich, 80333, Germany; Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109, United States; Department of Geological Sciences, University of Canterbury, Christchurch, 8140, New Zealand; Jacobs, NASA-Johnson Space Center, Mail Code X13, Houston, TX 77058, United States; Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, Notre Dame, IN 46556, United States

Recommended Citation:
Hui H.,Hess K.-U.,Zhang Y.,et al. Cooling rates of lunar orange glass beads[J]. Earth and Planetary Science Letters,2018-01-01,503
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