Andreas Mulch
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View article: Oligocene cooling in the North American cordillera (SW Montana, USA) revealed by dual clumped isotope thermometry
Oligocene cooling in the North American cordillera (SW Montana, USA) revealed by dual clumped isotope thermometry Open
Highlights • Radiometrically dated tuffs reveal a 34 to 27 Ma old sedimentary record in SW Montana. • Δ47–48 analysis shows disequilibrium and NO2 contaminants in some calcretes. • Unaffected calcretes show a 10 ± 1 °C cooling during the e…
View article: High‐Resolution Lake Deposits Record Temperature Variability During the Middle Eocene Greenhouse in Central Europe
High‐Resolution Lake Deposits Record Temperature Variability During the Middle Eocene Greenhouse in Central Europe Open
High‐resolution continental temperature records from geological archives are crucial in order to evaluate temperature dynamics under fundamentally different climate conditions than today. Particularly the warm early to middle Eocene (∼56–4…
View article: Miocene decoupling of surface uplift of the Central Anatolian Plateau interior (Türkiye) and its modern mountainous margins
Miocene decoupling of surface uplift of the Central Anatolian Plateau interior (Türkiye) and its modern mountainous margins Open
The Central Anatolian Plateau (CAP) forms the western portion of the Turkish-Iranian plateau and has mostly remained above sea level since ca. 41 Ma. However, the current topography of the CAP has predominantly developed since the Late Mio…
View article: Back to an ice-free future: Early Cretaceous seasonal cycles of sea surface temperature and glacier ice
Back to an ice-free future: Early Cretaceous seasonal cycles of sea surface temperature and glacier ice Open
Global ice losses will likely continue with ongoing climate warming, culminating in an almost ice-free planet analogous to that which persisted throughout much of the Cretaceous. Despite extensive research, Early Cretaceous cryosphere resp…
View article: Middle Miocene climate evolution in the northern Mediterranean region (Digne–Valensole basin, SE France)
Middle Miocene climate evolution in the northern Mediterranean region (Digne–Valensole basin, SE France) Open
During the Middle Miocene, the Earth shifted from a warm state, the Miocene Climatic Optimum (MCO; 16.9–14.7 Ma), to a colder state associated with the formation of extensive and permanent ice sheets on Antarctica. This climatic shift, the…
View article: Climate change-driven Late Miocene to Pliocene rise and fall of C4 vegetation in Anatolia (Türkiye)
Climate change-driven Late Miocene to Pliocene rise and fall of C4 vegetation in Anatolia (Türkiye) Open
Since the emergence of life on Earth 2.8 billion years ago, plants have been capitalizing on the C3 photosynthetic pathway. In the world’s grasslands that emerged since the Paleogene, C4 vegetation expanded considerably between 8 and…
View article: Climate change drove Late Miocene to Pliocene rise and fall of C <sub>4</sub> vegetation at the crossroads of Africa and Eurasia (Anatolia, Türkiye)
Climate change drove Late Miocene to Pliocene rise and fall of C <sub>4</sub> vegetation at the crossroads of Africa and Eurasia (Anatolia, Türkiye) Open
Life on Earth has been capitalizing on the C3 photosynthetic pathway for 2.8 billion years. However, in the world’s grasslands that emerged since the Paleogene, C4 vegetation expanded dramatically between 8 and 3 Ma in response to climatic…
View article: Ontogeny shapes individual dietary specialization in female European brown bears (Ursus arctos)
Ontogeny shapes individual dietary specialization in female European brown bears (Ursus arctos) Open
Individual dietary specialization, where individuals occupy a subset of a population’s wider dietary niche, is a key factor determining a species resilience against environmental change. However, the ontogeny of individual specialization, …
View article: Coral photosymbiosis on Mid-Devonian reefs
Coral photosymbiosis on Mid-Devonian reefs Open
The ability of stony corals to thrive in the oligotrophic (low-nutrient, low-productivity) surface waters of the tropical ocean is commonly attributed to their symbiotic relationship with photosynthetic dinoflagellates 1,2 . The evolutiona…
View article: Multifaceted orogenic fluid dynamics unraveled by hydrothermal epidote
Multifaceted orogenic fluid dynamics unraveled by hydrothermal epidote Open
Characterizing fluid circulation in orogens is key to understanding orogenic processes because fluid–rock interaction modifies the physical properties of rocks, hence their response to deformation and, for example, their suitability for ra…
View article: Coupled otolith and foraminifera oxygen and carbon stable isotopes evidence paleoceanographic changes and fish metabolic responses
Coupled otolith and foraminifera oxygen and carbon stable isotopes evidence paleoceanographic changes and fish metabolic responses Open
Capturing the mechanisms leading to the local extirpation of a species in deep time is a challenge. Here, by combining stable oxygen and carbon isotopic analyses on benthic and planktonic foraminifera and the otoliths of pelagic and benthi…
View article: Middle Miocene climate evolution in the Northern Mediterranean region (Digne-Valensole basin, SE France)
Middle Miocene climate evolution in the Northern Mediterranean region (Digne-Valensole basin, SE France) Open
During the Middle Miocene, the Earth shifted from a warm state, the Miocene Climatic Optimum (MCO, 16.9–14.7 Ma), to a colder state associated with the formation of extensive and permanent ice sheets on Antarctica. This climatic shift, the…
View article: Reply to Carrapa et al.: Central Puna uplift: Addressing criticisms, affirming conclusions
Reply to Carrapa et al.: Central Puna uplift: Addressing criticisms, affirming conclusions Open
Informal verbal interaction is the core matrix for human social life. A mechanism for coordinating this basic mode of interaction is a system of turn-taking that regulates who is to speak and when. Yet relatively little is known about how …
View article: Leaf wax n-alkane distribution and hydrogen isotopic fractionation in fen plant communities of two Mediterranean wetlands (Tenaghi Philippon, Nisí fen—Greece)
Leaf wax n-alkane distribution and hydrogen isotopic fractionation in fen plant communities of two Mediterranean wetlands (Tenaghi Philippon, Nisí fen—Greece) Open
Many continental paleoclimate archives originate from wetland sedimentary sequences. While several studies have investigated biomarkers derived from peat-generating vegetation typical of temperate/boreal bogs (e.g., Sphagnum ), only scant …
View article: Stable isotope paleoaltimetry reveals Early to Middle Miocene along-strike elevation differences of the European Alps
Stable isotope paleoaltimetry reveals Early to Middle Miocene along-strike elevation differences of the European Alps Open
The European Alps, one of the most studied mountain ranges worldwide, are hypothesized to have experienced diachronous surface uplift resulting from slab-breakoff (Schlunegger and Kissling, 2018; Handy et al., 2015). However their surface …
View article: A similarly warm but drier Mediterranean region at the Miocene - Pliocene transition
A similarly warm but drier Mediterranean region at the Miocene - Pliocene transition Open
Between 5.97-5.33 Ma, kilometre-thick evaporite units were deposited in the Mediterranean Basin during an event known as the Messinian Salinity Crisis (MSC). The MSC was characterised by a strongly negative hydrological budget, with a net …
View article: Sorbas&#8217; basin secrets unveiled: First record of Sea Surface Temperature and Sea Surface Salinity in the Western Mediterranean prior to the onset of the Messinian Salinity Crisis
Sorbas’ basin secrets unveiled: First record of Sea Surface Temperature and Sea Surface Salinity in the Western Mediterranean prior to the onset of the Messinian Salinity Crisis Open
Between 5.97 and 5.33 Ma, the Mediterranean area was fundamentally impacted by the Messinian Salinity Crisis (MSC), a pivotal event that led to the transformation of the Mediterranean Sea into an extensive evaporitic basin, caused by rapid…
View article: Probing large paleoenvironmental variability of Mediterranean during the Miocene-Pliocene transition via advanced multivariate statistical analysis on lipid biomarker multiproxy.
Probing large paleoenvironmental variability of Mediterranean during the Miocene-Pliocene transition via advanced multivariate statistical analysis on lipid biomarker multiproxy. Open
The quantitative reconstruction of paleoclimatic and paleoenvironmental conditions in regions and in time periods characterized by recurrent and significant fluctuations is challenging. An example of strong paleoenvironmental change occurr…
View article: Central Anatolian (Turkey) and Aegean (Greece) soil carbonate &#948;18O values reveal Late Miocene surface uplift of the southern plateau margin and post&#8722;Miocene aridification of the northeastern Mediterranean region
Central Anatolian (Turkey) and Aegean (Greece) soil carbonate δ18O values reveal Late Miocene surface uplift of the southern plateau margin and post−Miocene aridification of the northeastern Mediterranean region Open
In recent years, numerous studies focused on reconstructing the surface uplift history of the Central Anatolian Plateau (CAP) and the associated driving mechanisms such as slab breakoff, removal of lithospheric mantle, or crustal thickenin…
View article: Comment on egusphere-2024-309
Comment on egusphere-2024-309 Open
Abstract. Capturing the mechanisms leading to the local extirpation of a species in deep-time is a challenge. Combining stable oxygen and carbon isotopic analyses on benthic and planktonic foraminifera and the otoliths of pelagic and benth…
View article: Coupled otolith and foraminifera oxygen and carbon stable isotopes evidence paleoceanographic changes and fish metabolic responses
Coupled otolith and foraminifera oxygen and carbon stable isotopes evidence paleoceanographic changes and fish metabolic responses Open
Capturing the mechanisms leading to the local extirpation of a species in deep-time is a challenge. Combining stable oxygen and carbon isotopic analyses on benthic and planktonic foraminifera and the otoliths of pelagic and benthic fish sp…