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).
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.
The Drilling the Ivrea-Verbano zonE (DIVE) project, run as ICDP expedition 5071, aims at studying the lower continental crust (LCC) towards and across the Moho transition zone. The study area provides unique access to a section of the LCC with well-preserved structural relationships. Two drilling targets were selected from this zone for scientific investigations, which, in combination, reveal significant aspects of its geologic history. The goals of the project are primarily petrological-geochemical, geophysical, structural, microbiological, and focusing on natural gases. Two boreholes have been successfully drilled in project DIVE 1: first 5071_1_B near Ornavasso in 2022, then 5071_1_A in Megolo in 2023-2024.
This data publication provides the operational dataset of the ICDP project DIVE (ICDP 5071). The dataset is documented by the Explanatory Remarks (https://doi.org/10.48440/ICDP.5071.002).