Microbial diversity and biosignatures of amorphous silica deposits in .
Dec 4, 2018 . Chemical mobility of crystalline and amorphous SiO2 plays a fundamental role in several geochemical and biological processes, with silicate.
Pre Solutrean rock art in southernmost Europe: Evidence from Las .
Oct 17, 2018 . Raman analyses were performed using a portable BWTEK iRaman Plus .. (C) Pigment classification using Principal Components Analysis. . After Raman spectra baseline correction, calcite and dolomite were detected, .. at sites on the Cantabrian coast, such as La Viña, Conde, Venta de La Perra, etc.Get Price