Abstract The Geological Survey of Denmark and Greenland (GEUS) has a long history and over the years there has been a strong focus on traditional survey work such as geological mapping, research and advice to authorities on questions related to geological and natural resources. Many of the services provided are continuing in the years to come but modern, complex society engenders new questions, where decisions must be based on the best available knowledge, and geological surveys are key players to provide this knowledge to governments. In the new millennium, GEUS has entered into a number of long-term environmental monitoring programmes and several political sensitive projects. Key examples described include groundwater monitoring, assessment of the risk of pesticide leaching to the groundwater, disposal of low-radioactive waste, Carbon Capture and Storage the Continental Shelf Project of the Kingdom of Denmark, monitoring of the Greenland Inland Ice, and other activities on the ice shield. It is expected that GEUS will be involved in even more such studies in the coming years and that the modernization of classical studies will continue. The revised strategy of GEUS to be launched in 2020 will be focused on the institutions input to meet the United Nations sustainable goals.

Abstract The Blekinge–Bornholm orogen in southeastern Sweden consists of calc-alkaline to alkali–calcic intrusive rocks, rhyolites and dacites (1.8 Ga) that were structurally reworked under amphibolite facies conditions, affected by migmatization at mid-crustal levels at c. 1.44 Ga and intruded at c. 1.47–1.43 Ga by ferroan alkali–calcic plutons. This Mesoproterozoic orogen is bordered westwards by the Sveconorwegian orogen and northwards, along the boundary with well-preserved 1.8 Ga magmatic rocks in the Svecokarelian orogen, by a stitching c. 1.45 Ga pluton and steeply dipping ductile zones with a south-side-up, dip-slip shear component. A variably developed gneissic fabric (S 1 ) dips gently to moderately northwards and is affected by asymmetrical F 2 folds with a southerly vergence. Ductile high-strain zones with top-to-the south shear sense are suggested to correspond at depth to anomalously reflective zones along seismic profile BABEL line A. Open folding of the gneissosity around gently, north-plunging fold axes (F 3 ) completed the ductile deformational evolution. Uncertainty remains about the timing of the amphibolite facies ductile fabric and the D 2 folding, which is either late-stage Svecokarelian ( c. 1.77–1.75 Ga) or Hallandian ( c. 1.47–1.43 Ga). Non-collisional, accretionary orogenic systems are suggested to have operated during both time periods, radical reorganization of the subduction trend accompanying the Mesoproterozoic event.