The present document aims first and foremost to provide information for owners of buildings that ... more The present document aims first and foremost to provide information for owners of buildings that have platy limestone built into them and to investors wishing to use this natural stone; either as roof tiles, as courtyard pavers, for window sills or other construction elements, for the construction of stone houses or the erection of dry-stone walls. We wish to encourage owners (irrespective of whether their building has been formally granted the status of cultural heritage or not) to manage the inheritance left to them by their ancestors responsibly and to strive to preserve it for future generations. (Future) investors all too frequently encounter obstacles at the very start, i.e. when they decide to carry out a particular intervention on a building such as regular maintenance, renovation, restoration or perhaps even the construction of a new building. Many find it hard to navigate through the complicated procedures, are not aware of all of the restrictions that they could encounter even before initiating the investment or during it. Furthermore, the knowledge of the correct use of platy limestone as a building material is being lost with the ever decreasing use of the stone.
The Upper Cretaceous carbonates on the Island of Hvar were deposited within the central Tethyan, ... more The Upper Cretaceous carbonates on the Island of Hvar were deposited within the central Tethyan, intraoceanic Adriatic carbonate platform (s. str). The Upper Cretaceous stratigraphy of the platform has been described in detail from the neighbouring island of Brač. Following the intra-platform deeper-water carbonate sedimentation of the Dol Formation, the Campanian Pučišća Formation (the Brač 'Marbles' unit) in the area of the town of Hvar are characterized by massive bioclastic rudist-bearing carbonates deposited in relatively deeper subtidal environments. Within the uppermost part of the Pučišća Formation we recognized massive rudist valves, characterized by a complex canaliferous inner shell structure, and determined them as Pseudosabinia klinghardti. The valves are embedded in massive, light-grey to white, mostly recrystalized peloidal-bioclastic packstone to rudstones, characterized in places by chalky appearance. The macrofossil association comprises various radiolitids, rare hippuritids, plagioptychids and inoceramid bivalves. Microfossil association includes index species of orbitoids and siderolitines. The range of the microfossils, along with results of strontium-isotope stratigraphy, indicate the latest Middle Campanian age of the Pseudosabinia horizon. Thus, it is the youngest horizon of the Pučišća Formation in the Adriatic carbonate platform reported to date.
is the largest island of the Palagruža archipelago (central Adriatic Sea, Croatia). Despite its m... more is the largest island of the Palagruža archipelago (central Adriatic Sea, Croatia). Despite its minute size the island bears a certain geological interest being the only exposed piece of land in the central part (Mid-Adriatic ridge) of the common Adriatic foreland of the Apenninic and the Dinaridic orogenic domains. The litho-, bio-, and chemostratigraphic (strontium and sulphur isotopes) characteristics of the sedimentary units, along with tectono-structural and geomorphic characteristics of the island, are described in this paper. The oldest Žalo unit is composed of highly deformed siliciclastics containing gypsum, and carbonates of Middle Triassic (Ladinian) age. This unit represents a transitional fl uvial-to-shallow marine, occasionally evaporitic environment, typical of the Middle Triassic rifting phase of the Adriatic microplate. Soft and strongly deformed Žalo unit deposits are found along a probably still active, WNW-ESE striking, subvertical, oblique-slip fault that crosses the entire length of the island. The Žalo unit is probably in diapiric contact with the Lanterna unit, poorly defi ned as Late Triassic, and characterized by dolomite with chert and dolomite breccia, presumably deposited in a transitional platform-to-basin environment of an evolving Adriatic basin. The Lanterna unit deposits are capped by Miocene biocalcarenites of the Salamandrija unit over an almost perpendicular discordance, possibly representing an unconformity, suggesting that an early deformational phase preceded a Miocene marine transgression. Talus, landslide deposits, and humic soil make up the cover of the bedrock sedimentary succession, and they represent the ultimate phase of emersion of the island, which probably occurred during Pliocene(?) to Quaternary times. An active neotectonic regime of the central Adriatic is evidenced by present-day seismicity, while recent uplifting of the island is shown by the presence of remnants of pebbly palaeobeach deposits, marine (erosional) straths, and cyanobacterial supratidal encrustations (pelagosite) currently observed at various elevations above mean sea level.
The chronostratigraphy of ConiacianeMaastrichtian platform carbonates exposed on the island of Br... more The chronostratigraphy of ConiacianeMaastrichtian platform carbonates exposed on the island of Bra c and the adjacent mainland has been revised, based on numerical ages derived from strontium-isotope stratigraphy (SIS) of low-Mg calcite of rudist shells. The Dol intra-platform basin formed during the mid-Coniacianeearly Santonian. The base of the prograding Pu cišća Formation is of mid-Santonian age (84.9 Ma) in the southeast, and late Middle Campanian (77.3 Ma) in the northwest of the island, indicating a progradation rate of the platform margin of ca. 2.5 km/myr. Subaerial exposure of the platform occurred during the latest Middle Campanian and is coeval with a major drop in sea level reported from the Boreal Realm, North America, and the southern Tethyan margin. The base of the Sumartin Formation is revised here to the earliest Late Campanian (ca. 75 Ma). At its top, the formation contains rudist-bearing limestones of latest Maastrichtian age (65.4e 65.0 Ma). The exact position of the K/T boundary cannot be drawn due to the lack of material suitable for SIS, and to the absence of diagnostic fossils in restricted innermost-platform deposits of the Liburnian Formation, which follows conformably over the rudist-bearing Sumartin Formation. Based on the revised chronostratigraphy of platform evolution, and particularly on the numerical ages that constrain the progradation of the Pu cišća Formation, the stratigraphic ranges of characteristic Tethyan rudist bivalves and benthic foraminifers are re-evaluated.
The chronostratigraphy of ConiacianeMaastrichtian platform carbonates exposed on the island of Br... more The chronostratigraphy of ConiacianeMaastrichtian platform carbonates exposed on the island of Bra c and the adjacent mainland has been revised, based on numerical ages derived from strontium-isotope stratigraphy (SIS) of low-Mg calcite of rudist shells. The Dol intra-platform basin formed during the mid-Coniacianeearly Santonian. The base of the prograding Pu cišća Formation is of mid-Santonian age (84.9 Ma) in the southeast, and late Middle Campanian (77.3 Ma) in the northwest of the island, indicating a progradation rate of the platform margin of ca. 2.5 km/myr. Subaerial exposure of the platform occurred during the latest Middle Campanian and is coeval with a major drop in sea level reported from the Boreal Realm, North America, and the southern Tethyan margin. The base of the Sumartin Formation is revised here to the earliest Late Campanian (ca. 75 Ma). At its top, the formation contains rudist-bearing limestones of latest Maastrichtian age (65.4e 65.0 Ma). The exact position of the K/T boundary cannot be drawn due to the lack of material suitable for SIS, and to the absence of diagnostic fossils in restricted innermost-platform deposits of the Liburnian Formation, which follows conformably over the rudist-bearing Sumartin Formation.
The present document aims first and foremost to provide information for owners of buildings that ... more The present document aims first and foremost to provide information for owners of buildings that have platy limestone built into them and to investors wishing to use this natural stone; either as roof tiles, as courtyard pavers, for window sills or other construction elements, for the construction of stone houses or the erection of dry-stone walls. We wish to encourage owners (irrespective of whether their building has been formally granted the status of cultural heritage or not) to manage the inheritance left to them by their ancestors responsibly and to strive to preserve it for future generations. (Future) investors all too frequently encounter obstacles at the very start, i.e. when they decide to carry out a particular intervention on a building such as regular maintenance, renovation, restoration or perhaps even the construction of a new building. Many find it hard to navigate through the complicated procedures, are not aware of all of the restrictions that they could encounter even before initiating the investment or during it. Furthermore, the knowledge of the correct use of platy limestone as a building material is being lost with the ever decreasing use of the stone.
The Upper Cretaceous carbonates on the Island of Hvar were deposited within the central Tethyan, ... more The Upper Cretaceous carbonates on the Island of Hvar were deposited within the central Tethyan, intraoceanic Adriatic carbonate platform (s. str). The Upper Cretaceous stratigraphy of the platform has been described in detail from the neighbouring island of Brač. Following the intra-platform deeper-water carbonate sedimentation of the Dol Formation, the Campanian Pučišća Formation (the Brač 'Marbles' unit) in the area of the town of Hvar are characterized by massive bioclastic rudist-bearing carbonates deposited in relatively deeper subtidal environments. Within the uppermost part of the Pučišća Formation we recognized massive rudist valves, characterized by a complex canaliferous inner shell structure, and determined them as Pseudosabinia klinghardti. The valves are embedded in massive, light-grey to white, mostly recrystalized peloidal-bioclastic packstone to rudstones, characterized in places by chalky appearance. The macrofossil association comprises various radiolitids, rare hippuritids, plagioptychids and inoceramid bivalves. Microfossil association includes index species of orbitoids and siderolitines. The range of the microfossils, along with results of strontium-isotope stratigraphy, indicate the latest Middle Campanian age of the Pseudosabinia horizon. Thus, it is the youngest horizon of the Pučišća Formation in the Adriatic carbonate platform reported to date.
is the largest island of the Palagruža archipelago (central Adriatic Sea, Croatia). Despite its m... more is the largest island of the Palagruža archipelago (central Adriatic Sea, Croatia). Despite its minute size the island bears a certain geological interest being the only exposed piece of land in the central part (Mid-Adriatic ridge) of the common Adriatic foreland of the Apenninic and the Dinaridic orogenic domains. The litho-, bio-, and chemostratigraphic (strontium and sulphur isotopes) characteristics of the sedimentary units, along with tectono-structural and geomorphic characteristics of the island, are described in this paper. The oldest Žalo unit is composed of highly deformed siliciclastics containing gypsum, and carbonates of Middle Triassic (Ladinian) age. This unit represents a transitional fl uvial-to-shallow marine, occasionally evaporitic environment, typical of the Middle Triassic rifting phase of the Adriatic microplate. Soft and strongly deformed Žalo unit deposits are found along a probably still active, WNW-ESE striking, subvertical, oblique-slip fault that crosses the entire length of the island. The Žalo unit is probably in diapiric contact with the Lanterna unit, poorly defi ned as Late Triassic, and characterized by dolomite with chert and dolomite breccia, presumably deposited in a transitional platform-to-basin environment of an evolving Adriatic basin. The Lanterna unit deposits are capped by Miocene biocalcarenites of the Salamandrija unit over an almost perpendicular discordance, possibly representing an unconformity, suggesting that an early deformational phase preceded a Miocene marine transgression. Talus, landslide deposits, and humic soil make up the cover of the bedrock sedimentary succession, and they represent the ultimate phase of emersion of the island, which probably occurred during Pliocene(?) to Quaternary times. An active neotectonic regime of the central Adriatic is evidenced by present-day seismicity, while recent uplifting of the island is shown by the presence of remnants of pebbly palaeobeach deposits, marine (erosional) straths, and cyanobacterial supratidal encrustations (pelagosite) currently observed at various elevations above mean sea level.
The chronostratigraphy of ConiacianeMaastrichtian platform carbonates exposed on the island of Br... more The chronostratigraphy of ConiacianeMaastrichtian platform carbonates exposed on the island of Bra c and the adjacent mainland has been revised, based on numerical ages derived from strontium-isotope stratigraphy (SIS) of low-Mg calcite of rudist shells. The Dol intra-platform basin formed during the mid-Coniacianeearly Santonian. The base of the prograding Pu cišća Formation is of mid-Santonian age (84.9 Ma) in the southeast, and late Middle Campanian (77.3 Ma) in the northwest of the island, indicating a progradation rate of the platform margin of ca. 2.5 km/myr. Subaerial exposure of the platform occurred during the latest Middle Campanian and is coeval with a major drop in sea level reported from the Boreal Realm, North America, and the southern Tethyan margin. The base of the Sumartin Formation is revised here to the earliest Late Campanian (ca. 75 Ma). At its top, the formation contains rudist-bearing limestones of latest Maastrichtian age (65.4e 65.0 Ma). The exact position of the K/T boundary cannot be drawn due to the lack of material suitable for SIS, and to the absence of diagnostic fossils in restricted innermost-platform deposits of the Liburnian Formation, which follows conformably over the rudist-bearing Sumartin Formation. Based on the revised chronostratigraphy of platform evolution, and particularly on the numerical ages that constrain the progradation of the Pu cišća Formation, the stratigraphic ranges of characteristic Tethyan rudist bivalves and benthic foraminifers are re-evaluated.
The chronostratigraphy of ConiacianeMaastrichtian platform carbonates exposed on the island of Br... more The chronostratigraphy of ConiacianeMaastrichtian platform carbonates exposed on the island of Bra c and the adjacent mainland has been revised, based on numerical ages derived from strontium-isotope stratigraphy (SIS) of low-Mg calcite of rudist shells. The Dol intra-platform basin formed during the mid-Coniacianeearly Santonian. The base of the prograding Pu cišća Formation is of mid-Santonian age (84.9 Ma) in the southeast, and late Middle Campanian (77.3 Ma) in the northwest of the island, indicating a progradation rate of the platform margin of ca. 2.5 km/myr. Subaerial exposure of the platform occurred during the latest Middle Campanian and is coeval with a major drop in sea level reported from the Boreal Realm, North America, and the southern Tethyan margin. The base of the Sumartin Formation is revised here to the earliest Late Campanian (ca. 75 Ma). At its top, the formation contains rudist-bearing limestones of latest Maastrichtian age (65.4e 65.0 Ma). The exact position of the K/T boundary cannot be drawn due to the lack of material suitable for SIS, and to the absence of diagnostic fossils in restricted innermost-platform deposits of the Liburnian Formation, which follows conformably over the rudist-bearing Sumartin Formation.
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