Abstract Natural glass occurs on Earth in different geological contexts, mainly as volcanic glass, fulgurites, and impact glass. All these types of glasses are predominantly composed silica with variable amounts impurities, especially the alkalis, differ their water content due to mode formation. Distinguishing between glasses, also Moon other planetary bodies, can be challenging. This is parti...

The 1783–1784 AD fissure eruption of Laki (Iceland) produced 15 km of homogeneous basaltic lavas and tephra that are characterized by extreme (3‰) O-depletion relative to normal mantle. Basaltic tephra erupted over the last 8 centuries and as late as in November 2004 from the Grímsvötn central volcano, which together with Laki are a part of a single volcanic system, is indistinguishable in δO f...

s (underlined = graduate student; * = postdoctoral scholar) [128] Anderson, R.B., Long, S.P., Horton, B.K., Calle, A., and Stockli, D.F., 2014, New apatite and zircon (UTh)/He constraints on the timing of thrust-related exhumation in the southern Bolivian (21 ̊S) Andes: AGU Fall Meeting. [127] Barber, D., Stockli, D.F., Koshnaw, R.I., Horton, B.K., and Kendall, J.J., 2014, Detrital zircon U-Pb a...