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Mineral Chemistry of Metapelites from the Modereck Nappe (central Tauern Window, Eastern Alps)

In this dataset we report exemplary, representative mineral chemistry data of two metapelite samples (PG61 and PG89) from the Modereck Nappe in the central Tauern Window. The dataset is supplemental to the publication by Groß et al. (2020). For further details on the sample mineralogy and microstructure not provided in the data description file, we refer to this publication. The data was initially collected for a thermobarometry study of the region in the framework of the priority programme SPP 4DMB, funded by the German Research Association (DFG).Sample description:Sample PG61 is an example of a chloritoid-micaschist from the Piffkar Formation. Sample coordinates are UTM Zone 33N: 337044 E, 5216460 N (WGS84, 12.85326 E, 47.081526 N). It contains quartz, phengite, chloritoid, some chlorite, ilmenite (mix of ilmenite, geikielite, Fe-oxide) and relicts of sceletal garnet (as palisades along quartz grain boundaries) and accessory allanite. Rutile occurs as inclusions in quartz and no lawsonite, kyanite or carpholite were found.Sample PG89 is an example of a garnet-micaschist from the Brennkogel Formation. Sample coordinates are UTM Zone 33N: 341888 E, 5207230 N. (WGS 84, 12.920259 E, 46.999701 N) It contains quartz, phengite, garnet, chlorite, albite, tourmaline and rutile (often with ilmenite margins). No lawsonite, paragonite, glaucophane or omphacite was found.Analytical procedure:The compositions of rock forming minerals (white mica, garnet, chloritoid and chlorite) were aquired on a JEOL JXA 8200 SuperProbe at Freie Universität Berlin, Institut für Geologische Wissenschaften. Measurement conditions for spot analyses were 15 kV acceleration voltage, 20 nA beam current and <1 μm beam diameter. We used natural and synthetic reference materials for instrument calibration.

Balanced cross sections along the Giudicarie Belt (Southern Alps, Northern Italy) in 3-D Move

Neogene indentation of the Adriatic plate into Europe led to major modifications of the Alpine orogenic structures and style of deformation in the Eastern Alps. Especially, the offset of the Periadriatic Fault by the Northern Giudicarie Fault marks the initiation of strike-slip faulting and lateral extrusion of the Eastern Alps. Questions remain on the exact role of this fault zone in changes of the Alpine orogen at depth. This necessitates quantitative analysis of the shortening, kinematics and depth of decoupling underneath the Northern Giudicarie Fault and associated fold-and thrust belt in the Southern Alps. Tectonic balancing of a network of seven cross sections through the Giudicarie Belt parallel to the local shortening direction reveals that it comprises two kinematic domains with different amounts and partly overlapping ages of shortening. This data publication provides the cross sections that were not shown within Verwater et al. (2021, submitted to Solid Earth) (see figure A1.1 for section traces) but show lateral variations in shortening in present-day cross-sections across the study area (section A1.1). Cross sections 1, 5 and 6, which are discussed within the manuscript, will be described in more detail within section A1.2 (cross section 1), A1.3 (cross section 5) and A1.4 (cross section 6). In addition, the approach used for forward modelling in Move will be shown within section A2, as well as alternative kinematic scenarios that were tested for Cross sections 6. Section B describes the methods and datasets used for obtaining the location and depth of seismicity plotted along cross sections 1, 5 and 6 in Verwater et al. (submitted).

Structural geologic maps, field data and outcrop images from Cenozoic intramontane basins in southwestern Tian Shan

This data publication includes geologic-map and structural-field data that complement a structural analysis of intra-montane basins of the southwestern Tian Shan of Central Asia. The southwestern Tian Shan is defined as that part of the Tian Shan west of the Talas-Fergana Fault Zone that is located at the junction with the Pamir and the Afghan-Tajik Basin and stretches to the Fergana Basin in the north. It also includes an ArcGIS-Geodatabase with the shapefiles of the digitized stratigraphy and faults for the regional geological maps. The data are supplementary material to Trilsch et al. (2025): “Southwestern Tian Shan: 1. Deformation of Cenozoic Intra-montane Basins and Intervening Basement Ranges in Front of the Indian Mantle Indenter” (Tectonics; doi: added when published). One Figure, provided as pdf file and ArcGIS shapefiles, provides a map of the southwestern Tian Shan that compiles structures that were active or potentially-active during the Cenozoic. Reliable Cenozoic structures affect Mesozoic-Cenozoic strata; potentially-Cenozoic ones displace younger over older Paleozoic strata, or show opposite vergence within a sequence of consistently-verging Paleozoic nappes. The other figures provide maps, structural-data stereoplots, field pictures, and outcrop sketches of several intra-montane basins of the southwestern Tian Shan. The supplementary material is useful for researchers aiming to study the geoscience of the western (Tajik, Uzbek, Kyrgyz) Tian Shan.

Paleomagnetic data of the Balzes Anticline

This dataset is built from data published in two different articles (Rodríguez-Pintó et al. 2012 and 2016). The main scientific goal described in the articles is the quantification of vertical axis rotations (VAR) around the bended axis of the Balzes anticline in the South Pyrenean frontal thrust (External Sierras). 74 sites and one short magnetostratigraphic section were sampled following standard paleomagnetic field procedures; in total 984 oriented cores were drilled in the field. Paleomagnetic sites are evenly distributed along strike changes of the fold and were drilled in Eozene rock of the Ypresian (Cuisian), Lutetian and Bartonian rocks. Lithologies and affinity may vary; some rocks are marine limestones and marls (Boltaña, Paules and Guara Formations), others (sandy limestones and marls) represent transitional environments (Belsué-Atarés Formation) while the remaining are continental siltstones and sandstones from the Campodarbe Formation. Every site contains an average out of 9.6 standard cores (stand. dev. 5.8) but varies between 3 and 35. For the small magnetostratigraphic section 65 cores were sampled. Thermal demagnetization was the main laboratory analysis performed searching for VAR values at the site scale. The analyses were performed in the laboratories of the Universities of Barcelona and Burgos. 2G magnetometer were used to measure the magnetization in both laboratories and MMTD80 (Magnetic Measurements) and TD-48 SC (ASC Scientific) furnaces, respectively.

High-resolution rate maps from the Tajik basin and the Pamir

Interferometric East and Up rate maps based on time-series analysis of ~5 years of Sentinel-1 radar data provide an unprecedented spatial (~400 m) resolution of the recend surface deformation of the Tajik fold-and-thrust-belt and the greater Pamir area. Among other the data exhibit E-W shortening in the fold-thrust-belt, slip activity of the Babadag thrust fault and the Ilyak strike-slip fault, westward Pamir escape tectonics, halokinesis and near-surface, water-driven effects. Observations and methodology are discussed at length in Metzger et al., 2021 (under Review).

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