The mineralogical research of manganese-phosphate crusts in the region of Hodušín - Božetice at Milevsko

Title:

The mineralogical research of manganese-phosphate crusts in the region of Hodušín - Božetice at Milevsko

Creator:

Brož, Miroslav, Kovářová, Miloslava, Zdeněk Losos, Linhartová, Marcela, and Václav Vávra

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:eb9c1d28-cd79-4bb4-ba9e-11d4138d61ef
uuid:eb9c1d28-cd79-4bb4-ba9e-11d4138d61ef
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, fosfáty, phosphates, Hodušín (Opařany, Česko), Božetice (Česko), Česko, Hodušín (Opařany, Czechia), Czechia, Božetice (Czechia), Moldanubicum, variegated rock group of Sušice and Votice, apatite, weathering crusts, Mn-minerals, co-pyrolysis, wastes, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

A mineralogical study of the weathering crusts rich in P and Mn from the locality Hodušín - Božetice at Milevsko is presented. The locality belongs to the central part of the variegated group of Sušice and Votice in the Moldanubian Unit. From the analytical methods used, the IR-spectroscopy yielded satisfactory results. The main crust components subjected to weathering are apatite (of a CarHap B - dahllite type) and Mn-minerals (massive black psilomelane, the needle-aggregates probably comprise a poorly recrystallized psilomelane). Disintegrated rocks consist of a mixture of clay minerals, calcite and relicts of primary minerals (quartz, K-feldspars, albite, pyroxene and rutile). The origin and the source material of these crusts rich in P and Mn can not be unambiguously determined. Apatites without CL-effects indicate that the weathering crusts have originated in a strongly oxidative environment. Well documented neighbouring occurrences of phosphate minerals in the variegated group of Sušice and Votice are associated with graphitic rocks. Optical and quantitative chemical analyses of the rocks suggest that the source of apatite could possible be calc-silicate rocks (erlans) close to the graphitic rocks. Hypothetically, the metaphosphorite layers in the variegated Moldanubian Unit can also be considered a possible source of phosphorus., M. Brož, M. Kovářová, Z. Losos, M. Linhartová and V. Vávra., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2007 Volume:4 | Number:2 (146)

Harvested from:

CDK

Metadata only:

false