An Analcite-Basalt from Colorado

An Eucritic Basalt with Cm - Sized

Introduction: We present the first mineralogical and oxygen isotope data for the new eucrite Northwest Africa (NWA) 5073 that has some unique features. This meteorite is a desert find with a total mass of 185 g and represents a non-brecciated unequili-brated eucrite with the coarsest texture ever found among samples of the HED suite. Results: NWA 5073 has a basaltic texture, mainly composed of ...

Water in Lunar Mare Basalt: Confirmation from Apatite in Lunar Basalt 14053

[university of Colorado at Colorado Springs,colorado Springs, Colorado]

A Major KREEP-Basalt—Mare Basalt unconformity on the Moon

The lunar regolith records both the geological history and processes of the Moon and also that of particles from the Sun and galaxy. Such a record extends back to the age of the rock unit upon which the regolith is developed, but complex impact gardening and processing makes this record difficult to recover and interpret. Ancient rock units, such as lava flows, begin to have regolith developed ...

Basalt weathering across scales

Weathering of silicate minerals impacts many geological and ecological processes. For example, the weathering of basalt contributes significantly to consumption of atmospheric carbon dioxide (CO2) and must be included in global calculations of such consumption over geological timeframes. Here we compare weathering advance rates for basalt (wD β ), where D and β indicate the scale at which the r...