Geological Survey of Finland

Technical note: T c 1D – a 1D thermal and thermochronometer age prediction model

Abstract. Thermochronological data are commonly used to study the activity of geological processes over timescales of millions of years. Ages produced by thermochronological measurements, however, are non-unique and do not directly record rates of processes, which has led to the...

Opposing upper-mantle reflectivity beneath the northern Fennoscandian Shield: A possible record of multiple Paleoproterozoic subduction systems

The historical offshore BABEL seismic lines from the Bothnian Bay have played a key role in shaping interpretations of Paleoproterozoic tectonic evolution within the Fennoscandian Shield. However, the legacy data from BABEL lines 2–4 have remained underutilized since their origin...

Uncertainties of GRACE/GRACE-FO Satellite Gravimetry Data and Thereof Derived Products

Abstract Inter-satellite ranging by space gravimetry missions, such as from the Gravity Recovery And Climate Experiment (GRACE) mission and its successor mission GRACE Follow-On, has been established to observe mass variations in the Earth system from space globally. A complex pr...

Porous and Permeable Crystalline Basement: Evidence for Large‐Scale Hydraulic Connectivity at Kivetty, Finland

Abstract Porosity and permeability in crystalline shield basement are commonly assumed to be low, yet some fault zones sustain fluid circulation over kilometer scales. Here we quantify multiscale fault‐zone connectivity at Kivetty, central Finland, by integrating legacy deep‐bore...

Modeling the Subglacial Sediment System of the Finnish Lake District Ice Lobe During Deglaciation

Abstract. The systematic connection of glacial conditions in ice models with subglacial geomorphological observations has been limited by an inability to model subglacial sediment processes. The Finnish Lake District Ice Lobe (FLDIL) presents an opportunity to apply new model app...

Joint 3D resistivity inversion of ground-based MT and CSEM data to improve resolution for deep mineral exploration

Abstract The growing demand for critical raw materials to support carbon-neutral energy and transportation systems motivates the exploration of deep-seated (500–4000 m) mineral deposits. While electrical resistivity is a key parameter for identifying mineralization, imaging these...