[1] We present a revised model of soil evolution constrained by the recent LSCC data for lunar soils. In addition to an observed universal increase in feldspathic components in the finer fractions of soils [Taylor et al., 2001, 2003a, 2003b], both differential melting and lateral mixing processes appear to be required during the evolution of lunar soils. We propose mare-highland mixing of a sig...

introduction the study area is located 12km away from the north east of sarbisheh at the eastern border of the lut block (karimpour et al., 2011; richards et al., 2012). the magmatic activity in the lut blockhas begun in the middle jurassic (165-162 ma) and reached its peak in the tertiary age (jung et al., 1983; karimpour et al., 2011). volcanic and subvolcanic rocks in the tertiary age cover ...

Dyl et al. (2011) state that their results confirm the conclusion of J. Simon et al. (2005) that the pyroxene in Wark–Lovering rims (Wark and Lovering, 1977) found on Ca-, Al-rich refractory inclusions has lower Ti/Ti ratios than the primary pyroxene in the interiors of inclusions. While true, the claim is misleading because J. Simon et al. (2005) concluded that there was no Ti in the rims, whe...

Marapi in Sumatra is characterized by frequent short-lived explosions and small eruptions (Volcanic Explosivity Index 1–2) the past 250 years, volcano has erupted >60 times. Recent volcanic bombs presence of broadband seismic stations lead us to reconstruct plumbing system through an interdisciplinary study. A petrologic study summit uses pyroxene, plagioclase glass compositions obtain pressure...

The mineralogy of an unusual calc-silicate nodule brought to the surfaoe by the 1902 eruption of La Soufriere volcano on St. Vincent (Lesser Antilles arc) is described. It consists of the crystalloblastic mineral assemblage fassaite pyroxene + grandite garnet + wollastonite + anorthite t calcite. The pyroxene is more aluminous (Al2O3 : 19.66 weight percent) than any previously described from te...