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Pregled bibliografske jedinice broj: 798852

Climate controlled, fabric destructive, reflux dolomitization and stabilization via marine- and synorogenic mixed fluids : an example from a large Mesozoic, calcite-sea platform, Croatia


Read, Fred J.; Husinec, Antun; Cangialosi, Michael; Loehn, Clayton W.; Prtoljan, Božo
Climate controlled, fabric destructive, reflux dolomitization and stabilization via marine- and synorogenic mixed fluids : an example from a large Mesozoic, calcite-sea platform, Croatia // Palaeogeography, palaeoclimatology, palaeoecology, 449 (2016), 108-126 doi:10.1016/j.palaeo.2016.02.015 (međunarodna recenzija, članak, znanstveni)


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Naslov
Climate controlled, fabric destructive, reflux dolomitization and stabilization via marine- and synorogenic mixed fluids : an example from a large Mesozoic, calcite-sea platform, Croatia

Autori
Read, Fred J. ; Husinec, Antun ; Cangialosi, Michael ; Loehn, Clayton W. ; Prtoljan, Božo

Izvornik
Palaeogeography, palaeoclimatology, palaeoecology (0031-0182) 449 (2016); 108-126

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
isolated platform ; post-depositional dolomite ; geochemistry ; mesohaline reflux ; stabilization

Sažetak
The Jurassic-Cretaceous dolomites, Adriatic platform, Croatia resulted from climate-influenced post-depositional reflux dolomitization (as opposed to synsedimentary peritidal- and deeper burial dolomitization), and subsequent stabilization within a Mesozoic, “calcite sea” isolated platform. The dolomites are stratiform (10 to 200 m thick), fabric destructive (20 to over 500 μm crystals), nonluminescent, and zoned with respect to Ca. Bulk dolomites have low Mn (10 to 30 ppm), moderate Sr (60 to over 200 ppm), positive δ13C and δ18O values, only moderate ordering (0.25 to 0.6) and single-phase fluid inclusions (temperatures <50 °C). High-Ca dolomite (HCD ; ~53 to ~59 mol% Ca ; δ18O +1 to >+3‰ VPDB and Sr>100 ppm) composes most Jurassic and 40% of Cretaceous dolomites, making up turbid dolomite cores and initial clear dolomite rims. A first generation of low-Ca dolomite (LCD-1 ; 50 to 53 mol% Ca ; δ18O +1 to >+3‰ VPDB ; 100-180 ppm Sr) forms cement and variably replaces (stabilizes) earlier HCD cores. HCD and LCD-1 formed in refluxing marine-dominated pore waters under semi-arid climate (<300m depth, 30 to ~40 °C). 87/86Sr values of the HCD and LCD-1 dominantly were controlled by the refluxing seawater 87/86Sr with minor addition of 87/86Sr from ascending cooling fluids. During maturation of HCD, Sr loss was greatest from least stable, more calcic HCD (>55 mol%) phases. A second generation of much younger, low-Ca dolomite (LCD-2 ; fracture-associated, more negative δ18O from -1.4 to +1‰ VPDB, Sr <100 ppm, enriched in radiogenic 87Sr) overgrows and variably replaces earlier Cretaceous dolomites. It formed during Eocene-Oligocene deformation and uplift to <1 km burial depths (<50 °C) from synorogenic, mixed marine-meteoric pore fluids, circulating via faults, fractures and local permeable zones. Porosity loss by dolomite cementation coupled with localized, rapid Cenozoic uplift, variably arrested stabilization to LCD.

Izvorni jezik
Engleski

Znanstvena područja
Geologija



POVEZANOST RADA


Projekti:
181-1811096-1093 - Osnovna geološka karta Republike Hrvatske 1:50.000 (Belak, Mirko, MZOS ) ( POIROT)
181-1953068-0241 - Odraz paleoklimatskih promjena u jursko-krednim sedimentima Krških Dinarida (Hajek-Tadesse, Valentina, MZOS ) ( POIROT)

Ustanove:
Hrvatski geološki institut

Profili:

Avatar Url Antun Husinec (autor)

Avatar Url Božo Prtoljan (autor)

Citiraj ovu publikaciju:

Read, Fred J.; Husinec, Antun; Cangialosi, Michael; Loehn, Clayton W.; Prtoljan, Božo
Climate controlled, fabric destructive, reflux dolomitization and stabilization via marine- and synorogenic mixed fluids : an example from a large Mesozoic, calcite-sea platform, Croatia // Palaeogeography, palaeoclimatology, palaeoecology, 449 (2016), 108-126 doi:10.1016/j.palaeo.2016.02.015 (međunarodna recenzija, članak, znanstveni)
Read, F., Husinec, A., Cangialosi, M., Loehn, C. & Prtoljan, B. (2016) Climate controlled, fabric destructive, reflux dolomitization and stabilization via marine- and synorogenic mixed fluids : an example from a large Mesozoic, calcite-sea platform, Croatia. Palaeogeography, palaeoclimatology, palaeoecology, 449, 108-126 doi:10.1016/j.palaeo.2016.02.015.
@article{article, year = {2016}, pages = {108-126}, DOI = {10.1016/j.palaeo.2016.02.015}, keywords = {isolated platform, post-depositional dolomite, geochemistry, mesohaline reflux, stabilization}, journal = {Palaeogeography, palaeoclimatology, palaeoecology}, doi = {10.1016/j.palaeo.2016.02.015}, volume = {449}, issn = {0031-0182}, title = {Climate controlled, fabric destructive, reflux dolomitization and stabilization via marine- and synorogenic mixed fluids : an example from a large Mesozoic, calcite-sea platform, Croatia}, keyword = {isolated platform, post-depositional dolomite, geochemistry, mesohaline reflux, stabilization} }
@article{article, year = {2016}, pages = {108-126}, DOI = {10.1016/j.palaeo.2016.02.015}, keywords = {isolated platform, post-depositional dolomite, geochemistry, mesohaline reflux, stabilization}, journal = {Palaeogeography, palaeoclimatology, palaeoecology}, doi = {10.1016/j.palaeo.2016.02.015}, volume = {449}, issn = {0031-0182}, title = {Climate controlled, fabric destructive, reflux dolomitization and stabilization via marine- and synorogenic mixed fluids : an example from a large Mesozoic, calcite-sea platform, Croatia}, keyword = {isolated platform, post-depositional dolomite, geochemistry, mesohaline reflux, stabilization} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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