EAP - earth publications

PUBLISHED
SINCE 1952

Estonian Journal of Earth Sciences

ISSN 1736-7557 (Electronic)
ISSN 1736-4728 (Print)

Open Access Journal

CiteScore: 1.4

Impact Factor (2022): 1.1

Corroded hydrothermal quartz in Ordovician altered volcanic ash beds of the Baltoscandian Region; pp. 268–272

PDF | doi: 10.3176/earth.2009.4.05

Authors

Tarmo Kiipli, Toivo Kallaste, Anne Kleesment, Arne T. Nielsen

Abstract

Partly dissolved prismatic quartz crystals have been found in an Upper Ordovician volcanic ash bed of the Vasagård section on Bornholm, Denmark. Similar crystals occur also in a volcanic ash in the Adze Formation of the Aizpute core, Latvia. Although biostratigraphic data are insufficient for the correlation of these findings, the abundant occurrence of this rare form of quartz at Vasagård indicates that it can be reliably used as a correlation criterion in future studies. Partly dissolved prismatic quartz crystals were most likely formed during hydrothermal processes in the volcanic source area.

References

Bergström, S. M., Huff, W. D., Kolata, D. R. & Bauert, H. 1995. Nomenclature, stratigraphy, chemical fingerprinting and areal distribution of some Middle Ordovician K‑bentonites in Baltoscandia. Geologiska Föreningens Förhandlingar, 117, 1–13.

Bignall, G., Sekine, K. & Tsuchiya, N. 2004. Fluid-rock interaction in the Te Kopia geothermal field (New Zealand) revealed by SEM-CL imaging. Geothermics, 33, 615–635.
doi:10.1016/j.geothermics.2004.03.001

Bjerreskov, M. & Stouge, S. 1985. Field Excursion Guide, Bornholm, Denmark; Third International Conference of Graptolite Working Group of the International Palaeontological Association. Institute of Historical Geology and Palaeontology, University of Copenhagen, 23 pp.

Byström, A. M. 1956. Mineralogy of the Ordovician bentonite beds at Kinnekulle, Sweden. Sveriges Geologiska Undersökning, C540, 1–62.

Glimberg, C. F. 1961. Middle and Upper Ordovician strata at Lindegård in the Fagelsang District, Scania, S. Sweden. Geologiska Föreningens Förhandlingar, 83, 79–85.

John, D. A. 2008. Supervolcanoes and metallic ore deposits. Elements, 4, 22.
doi:10.2113/GSELEMENTS.4.1.22

Jürgenson, E. 1958. Metabentonites in Estonian SSR. Trudy Instituta Geologii AN ESSR, 2, 73–85 [in Russian].

Kiipli, T. 2005. Maavarade keemilise kvaliteedi andmekogu [Chemical database of mineral resources]. Eesti Geoloogiakeskuse aastaraamat, 2004, 34–37 [in Estonian].

Kiipli, T., Kiipli, E., Kallaste, T., Hints, R., Somelar, P. & Kirsimäe, K. 2007. Altered volcanic ash as an indicator of marine environment, reflecting pH and sedimentation rate – example from the Ordovician Kinnekulle bed of Baltoscandia. Clays and Clay Minerals, 55, 177–188.
doi:10.1346/CCMN.2007.0550207

Kurvits, T. 1994. Kvarts Rakvere ümbruse fosforiidikihindis [Quartz in phosphorite-bearing beds of the Rakvere area]. Acta et Commentationes Universitatis Tartuensis, 972, 40–49 [in Estonian].

Landtwing, M. R., Pettke, T., Halter, W. E., Heinrich, C. A., Redmond, P. B., Einaudi, M. T. & Kunze, K. 2005. Copper deposition during quartz dissolution by cooling magmatic-hydrothermal fluids: the Bingham porphyry. Earth and Planetary Science Letters, 235, 229–243.
doi:10.1016/j.epsl.2005.02.046

Simmons, S. F. & Brown, K. L. 2007. The flux of gold and related metals through a volcanic arc, Taupo Volcanic Zone, New Zealand. Geology, 35, 1099–1102.
doi:10.1130/G24022A.1

Utsal, K. & Jürgenson, K. 1971. The mineralogy of Estonian metabentonites. Eesti NSV Teaduste Akadeemia Toimetised, Keemia, Geoloogia, 20, 336–348 [in Russian, with English summary].

Vingisaar, P. & Murnikova, T. 1973. New data on the mineralogy of some Estonian Lower Caradocian metabentonites. Eesti NSV Teaduste Akadeemia Toimetised, Keemia, Geoloogia, 22, 149–158 [in Russian, with English summary].

Back to Issue