Volatile loss following cooling and accretion of the Moon revealed by chromium isotopes
نویسندگان
چکیده
منابع مشابه
PSRD: Zinc Isotopes Provide Clues to Volatile Loss During Moon Formation
Isotopic analyses of the oxygen and the refractory elements chromium, tungsten, and titanium show that Earth and Moon have the same isotopic compositions for these elements. In contrast, Randal Paniello and Frédéric Moynier (Washington University in St. Louis) and James Day (Scripps Institution of Oceanography, La Jolla) report from highprecision analyses of the isotopes of the volatile element...
متن کاملExtensive volatile loss during formation and differentiation of the Moon
Low estimated lunar volatile contents, compared with Earth, are a fundamental observation for Earth-Moon system formation and lunar evolution. Here we present zinc isotope and abundance data for lunar crustal rocks to constrain the abundance of volatiles during the final stages of lunar differentiation. We find that ferroan anorthosites are isotopically heterogeneous, with some samples exhibiti...
متن کاملEvaporative fractionation of volatile stable isotopes and their bearing on the origin of the Moon.
The Moon is depleted in volatile elements relative to the Earth and Mars. Low abundances of volatile elements, fractionated stable isotope ratios of S, Cl, K and Zn, high μ ((238)U/(204)Pb) and long-term Rb/Sr depletion are distinguishing features of the Moon, relative to the Earth. These geochemical characteristics indicate both inheritance of volatile-depleted materials that formed the Moon a...
متن کاملGiant Impacts , Volatile Loss , and the K / Th Ratios on the Moon , Earth , and Mercury
MERCURY. S. T. Stewart, Z. M. Leinhardt, and M. Humayun. Harvard University, Department of Earth and Planetary Sciences, 20 Oxford Street, Cambridge, MA 02138, U.S.A. ([email protected]). University of Bristol, School of Physics, Tyndall Avenue, Bristol BS8 1TL, U.K. ([email protected]). Florida State University, Department of Earth, Ocean & Atmospheric Science, 1800 E. Paul Di...
متن کاملcontrol of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2018
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1809060115