Lukáš Ackerman
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View article: The use of strontium isotopes ( <sup>87</sup> Sr/ <sup>86</sup> Sr) to determine the geographic assignment based on keratin values of shed skins of green pythons ( <i>Morelia viridis</i> ) as an effective tool against wildlife crime
The use of strontium isotopes ( <sup>87</sup> Sr/ <sup>86</sup> Sr) to determine the geographic assignment based on keratin values of shed skins of green pythons ( <i>Morelia viridis</i> ) as an effective tool against wildlife crime Open
The green tree python is quite a favorite pet for sale on the international market. The species is therefore protected by the Convention on International Trade in Endangered Species of Wild Flora and Fauna (CITES). Since the illegal poachi…
View article: The first collective Neolithic megalithic tomb in Oman
The first collective Neolithic megalithic tomb in Oman Open
A newly discovered grave in Wadi Nafūn, Oman, features a unique burial structure, combining monumental architecture and the collective deposition of human remains from multiple Neolithic groups. Detailed analysis of the burial community re…
View article: The Origins of Viking Age Dogs in Luistari, Eura, Finland
The Origins of Viking Age Dogs in Luistari, Eura, Finland Open
We used stable (δ 18 O) and radiogenic ( 87 Sr/ 86 Sr) isotopic proxies to investigate the origins of dogs ( Canis familiaris ) buried in Viking Age graves at Luistari, Finland. While all 13 dogs exhibited oxygen isotope values compatible …
View article: Orogenic arc-related Ni-Cu-(PGE) mineralization of the Ransko massif, Czech Republic, and implications for the metallogeny of the European Variscan belt
Orogenic arc-related Ni-Cu-(PGE) mineralization of the Ransko massif, Czech Republic, and implications for the metallogeny of the European Variscan belt Open
The Ransko (ultra)mafic massif, Bohemian Massif, Czech Republic, hosts several Ni–Cu–(PGE) deposits and peculiar Zn–Cu–Ba ores. Geochronology integrated with petrography, bulk-rock, and mineral compositions together with Sr–Nd–Pb–Hf–Os–O i…
View article: Multi-isotopic evidence reveals the emergence of a cosmopolitan community at the Luistari cemetery in Eura, Finland, during the early Medieval period (600–1130 CE)
Multi-isotopic evidence reveals the emergence of a cosmopolitan community at the Luistari cemetery in Eura, Finland, during the early Medieval period (600–1130 CE) Open
This study examines the role of the Eura region as a nexus linking the inland with Baltic Sea trade routes. Luistari cemetery, spanning from the early Merovingian to Medieval periods, provides key insights into South-Western Finland’s soci…
View article: New U-Pb zircon ages from Cadomian basement of the Balkan fold-and-thrust belt of northern Bulgaria
New U-Pb zircon ages from Cadomian basement of the Balkan fold-and-thrust belt of northern Bulgaria Open
New U-Pb zircon ages are preliminarily reported here from various high-grade units within the overall low-grade Balkan fold-and-thrust belt of northern Bulgaria. The Stakevtsi gneisses yielded Cadomian ages interpreted as magma crystalliza…
View article: Pedogenic continental red beds: How, why and when red? Redox geochemistry and quantitative colour analysis of the Old Red Sandstone, South Wales, UK
Pedogenic continental red beds: How, why and when red? Redox geochemistry and quantitative colour analysis of the Old Red Sandstone, South Wales, UK Open
Continental red beds are coloured by secondary Fe(III)‐oxy‐hydroxides (mainly hematite) which makes them excellent archives of ancient near‐surface redox conditions. However, colour is often treated as a subjective physical property, and o…
View article: Unravelling Different Mechanisms of Metasomatism and Geodynamic Evolution of Pyroxenite-Veined Subcontinental Lithospheric Mantle beneath the Central European Variscides
Unravelling Different Mechanisms of Metasomatism and Geodynamic Evolution of Pyroxenite-Veined Subcontinental Lithospheric Mantle beneath the Central European Variscides Open
Pyroxenite-veined garnet peridotites from the Gföhl Unit of the Moldanubian Zone in the Bohemian Massif provide direct constraints on diverse mechanisms of mantle metasomatism and refertilization driven by a single pulse of melt beneath th…
View article: Talc metasomatism of a magnesite body in response to a granite intrusion: Application of Sm Nd dating of metasomatic dolomite
Talc metasomatism of a magnesite body in response to a granite intrusion: Application of Sm Nd dating of metasomatic dolomite Open
The deposit Gemerská Poloma is located in the Gemeric Superunit of the Western Carpathians and it is currently mined for talc. Talc formed by metasomatic replacement of magnesite, together with dolomite, quartz, pyrite, and accessory miner…
View article: Miocene Volcanism in the Slovenský Raj Mountains: Magmatic, Space, and Time Relationships in the Western Carpathians
Miocene Volcanism in the Slovenský Raj Mountains: Magmatic, Space, and Time Relationships in the Western Carpathians Open
The Miocene volcanic-intrusive complex in the Slovenský Raj Mountains, middle Slovakia, comprises a swarm of subalkaline basalts and basaltic andesites with alkaline basalts, trachybasalts and basaltic trachyandesites. Basaltic to doleriti…
View article: Multi-stage metal enrichment and formation of gold mineralization in black shales: the role of high heat flow in a rift setting
Multi-stage metal enrichment and formation of gold mineralization in black shales: the role of high heat flow in a rift setting Open
Black shales may serve as an important source of metals such as Co, Ni, or As, largely due to anoxic to euxinic conditions in association with high concentrations of sulfur leading to efficient scavenging and transport of metals from seawa…
View article: The Miocene Climatic Optimum at the interface of epicontinental sea and large continent: A case study from the Middle Miocene of the Eastern Paratethys
The Miocene Climatic Optimum at the interface of epicontinental sea and large continent: A case study from the Middle Miocene of the Eastern Paratethys Open
The Miocene Climate Optimum (MCO) and the subsequent Miocene Climate Transition (MCT) are important biotic, environmental and geologic events. Here we address whether this holds true for the epicontinental Eastern Paratethys Sea (today's B…
View article: On the anatomy and structural control of a dyke swarm that fed caldera-forming ignimbrite eruptions
On the anatomy and structural control of a dyke swarm that fed caldera-forming ignimbrite eruptions Open
Anisotropy of magnetic susceptibility.
View article: Earth's Earliest Phaneritic Ultramafic Rocks: Mantle Slices or Crustal Cumulates?
Earth's Earliest Phaneritic Ultramafic Rocks: Mantle Slices or Crustal Cumulates? Open
When plate tectonics initiated remains uncertain, partly because many signals interpreted as diagnostic of plate tectonics can be alternatively explained via hot stagnant‐lid tectonics. One such signal involves the petrogenesis of early Ar…
View article: Geochemistry, Lu–Hf garnet ages, and P–T conditions of blueschists from the Meliatic and Fatric nappes, Western Carpathians: Indicators of Neotethyan subduction
Geochemistry, Lu–Hf garnet ages, and P–T conditions of blueschists from the Meliatic and Fatric nappes, Western Carpathians: Indicators of Neotethyan subduction Open
Basaltic rocks from ophiolitic mélanges provide information on geodynamic setting, origin, and later tectonometamorphic conditions. This paper resolves the P–T conditions and timing of high-pressure metamorphism in an accretionary wedge th…
View article: The significance of cherts as markers of Ocean Plate Stratigraphy and paleoenvironmental conditions: New insights from the Neoproterozoic–Cambrian Blovice accretionary wedge, Bohemian Massif
The significance of cherts as markers of Ocean Plate Stratigraphy and paleoenvironmental conditions: New insights from the Neoproterozoic–Cambrian Blovice accretionary wedge, Bohemian Massif Open
The Ediacaran to early Cambrian Blovice accretionary complex, Bohemian Massif, hosts abundant chert bodies that formed on an oceanic plate and were involved in subduction beneath the northern margin of Gondwana. Field relationships of cher…
View article: Geochemical constraints on the origin of phonolites from the Lužické hory Mts., the Ohře (Eger) Rift, Bohemian Massif
Geochemical constraints on the origin of phonolites from the Lužické hory Mts., the Ohře (Eger) Rift, Bohemian Massif Open
Geochemical and petrological data are reported for phonolites of the Lužické hory Mts. in the northeastern part of the Ohře (Eger) Rift near the junction with the Lusatian Fault. The phonolites of the Lužické hory Mts. are enriched in inco…
View article: New Perspectives on the <sup>143</sup>Nd/<sup>144</sup>Nd Palaeoceanographic Tracer on Foraminifera: The State‐of‐the‐Art Frontiers of Analytical Methods
New Perspectives on the <sup>143</sup>Nd/<sup>144</sup>Nd Palaeoceanographic Tracer on Foraminifera: The State‐of‐the‐Art Frontiers of Analytical Methods Open
The 143 Nd/ 144 Nd isotopic composition of foraminifera represents one of the most prominent palaeoceanographic proxies enabling tracing of particular water masses due to the short residence time of Nd in seawater and large‐scale provincia…