Charakterystyka litologiczno-petrograficzna utworów syluru z obszaru Myszków-Mrzygłód
Abstract
LITHOLOGICAL-PETROGRAPHIC CHARACTERISTICS OF SILURIAN ROCKS OF THE MYSZKÓW-MRZYGŁÓD AREA
Summary
In the years 1972-1977, the Myszków-Mrzygłód area was covered by studies aimed at evaluation of perspectives of occurrence of metal raw material deposits in Lower Paleozoic rocks. The studies carried out by the Upper Silesian Branch of the Geological Institute, gave some interesting new data on traces of ore mineralization, lithology, stratigraphy and petrography of the Paleozoic. The analysis of these data made it possible to carry out litho-stratigraphic correlation of Silurian. The obtained characteristics of lithology and petrography of individual links of the Silurian are as follows:
Llandoverian - formed of dark-gray, sometimes greenish-gray chlorite-sericite and chlorite-biotite meta-aleurites and metapelites with lydite intercalations.
Wenlockian - mainly formed of black biotite, biotite-sericite and biotite-chlorite meta-pelites varying from 100 to 200 m in thickness.
Lower Ludlovian - represented by dark-gray or gray-green chlorite-biotite or biotite-actinolite meta-pelites and meta-aleurites, about 400 m thick.
Upper Ludlovian - formed of flysch deposits represented by clay and siltstone gray-greenish or red-brownish shales intercalated by graywackes and conglomerates, some thousand meters thick.
Summary
In the years 1972-1977, the Myszków-Mrzygłód area was covered by studies aimed at evaluation of perspectives of occurrence of metal raw material deposits in Lower Paleozoic rocks. The studies carried out by the Upper Silesian Branch of the Geological Institute, gave some interesting new data on traces of ore mineralization, lithology, stratigraphy and petrography of the Paleozoic. The analysis of these data made it possible to carry out litho-stratigraphic correlation of Silurian. The obtained characteristics of lithology and petrography of individual links of the Silurian are as follows:
Llandoverian - formed of dark-gray, sometimes greenish-gray chlorite-sericite and chlorite-biotite meta-aleurites and metapelites with lydite intercalations.
Wenlockian - mainly formed of black biotite, biotite-sericite and biotite-chlorite meta-pelites varying from 100 to 200 m in thickness.
Lower Ludlovian - represented by dark-gray or gray-green chlorite-biotite or biotite-actinolite meta-pelites and meta-aleurites, about 400 m thick.
Upper Ludlovian - formed of flysch deposits represented by clay and siltstone gray-greenish or red-brownish shales intercalated by graywackes and conglomerates, some thousand meters thick.