Results 111 to 120 of about 21,971 (257)
Zeolitisation of Neogene sedimentary and pyroclastic rocks exposed in Paipa (Boyacá), in the Colombian Andes: simulating their natural formation conditions [PDF]
, 2011 Quintero Ortíz Fredy Alberto +2 more
openalex +2 more sources
An investigation of volcanic depressions. Part 1: Airfall and intrusive pyroclastic deposits. Part 2: Subaerial pyroclastic flows and their deposits [PDF]
Pyroclastic ejecta and the deposits they form were classified in many ways, and many interpretations were given to individual terms. Some classifications are based on the modes of orgin and deposition of the ejecta; others emphasized the chemical and ...
Mcbirney, A. R., Williams, H.
core +1 more source
Geochemical evolution of soils developed from pyroclastic rocks of Trindade Island, South Atlantic [PDF]
, 2020 Ana Carolina Campos Mateus +4 more
openalex +1 more source
Lithology, age and structure of early proterozoic greenstone belts, West African shield [PDF]
Lithologic and chemical data have been compiled for belts in the Proterozoic terrane. Available stratigraphic information from geologic maps of these areas indicate that a typical sequence is comprised of predominately mafic lava flows (basalt-andesite ...
Attoh, K.
core +1 more source
Latin American Journal of Sedimentology and Basin Analysis, 2009 The southeastern border of the Laguna Merín Basin (Rocha Department, East Uruguay) consists of Mesozoic volcanic deposits of the Puerto Gómez and Arequita formations, overlain by a sedimentary cover of Cenozoic and recent deposits.
Rossana Muzio +3 more
doaj
Radiation Shielding Parameters and Micro-Raman Spectral Analysis of Some Pyroclastic Rocks
, 2022 Demet Yılmaz +2 more
openalex +1 more source
Towards OWL-based Knowledge Representation in Petrology
, 2011 This paper presents our work on development of OWL-driven systems for formal representation and reasoning about terminological knowledge and facts in petrology.
Kudryavtsev, Dmitry +2 more
core