Nd processing are reported in [25]. The magnetic anomaly map derived from
Nd processing are reported in [25]. The magnetic anomaly map derived from this survey on our study region is presented in Figure four.Minerals 2021, 11,4 ofFigure two. Geological map and place of your study location. (A) Sketch map of your Armorican massif displaying the key geological domains along with the place from the study location. (B) Simplified geological map with the Ploumanac’h igneous complex, modified from [21]; the study location is positioned around the eastern border from the complicated. (C) Geological map in the working location (this study). (D) Detailed geological map with the Ranolien sector displaying the contact involving the Paleo-Proterozoic host, the Neoproterozoic Perros-Guirec granite along with the Ploumanac’h Carboniferous granite. Pegmatites and aplite dykes (in red) derived from Ploumanac’h pluton crosscut all the previous lithologies. Sun-shading applying 1 m 1 m resolution RGE ALTI Digital Terrain Model from IGN. (E) Detailed geological map of your Trestraou sector displaying the higher density of mafic dykes crosscutting the Perros-Guirec Neoproterozoic granite. Note that many dykes are crosscut by NW-SE faults. Principal mineralized zones along NW-SE Lacto-N-biose I Protocol faults and along mafic dyke contacts are highlighted by yellow-dashed lines.Minerals 2021, 11,five ofFigure 3. Extracts of (A) the RVB color-coded multispectral and (B) near-infrared mosaics on a subarea in the southern block (Trestraou sector) surveyed by drone. In (A) detailed geological contours (in black) and faults (in red) are superimposed, derived from the joint interpretation of field observations as well as the mosaics. Relations involving the three generations of mafic dykes are highlighted: The initial generation NE-SW-trending mafic dyke (dolerite), noted 1, is crosscut by the second generation of NW-SE mafic dyke (noted two) emplaced inside low-dipping reverse faults (in red). 1 and 2 are both crosscut by the third generation (noted 3) of NE-SW-trending mafic dyke (dolerite).The magnetic UAV-borne data had been surveyed in October 2019, in four flights/blocks in much less than 3 hours, using a survey-grade multirotor drone from DTU [26], towing a single Rubidium absolute QuSpin magnetic sensor fitted within a bird. The bird was towed 4.5 m beneath the UAV, at a constant altitude of 15/30 m a.m.s.l. and also a constant speed of 13 m/s. Survey/tie lines had been respectively flown roughly parallel/perpendicular to the coast at a 10/80 m spacing. Diurnal variations from the magnetic field have been corrected for working with information of a GSM-19 base station continuously recorded in the vicinity of the survey area. Detailed survey parameters and processing are reported in [26]. The high-resolution UAV magnetic anomaly map is presented in Figure 4. two.two.three. Petrophysics In an effort to constrain the magnetic interpretation and modeling, (magnetic susceptibility) measurements were taken inside the field using a SM-30 handheld kappameter. All lithologies outcropping in the study area were sampled: the facies of two granites and aplite-pegmatite veins, two gneisses, three different Kumbicin C In Vivo dolerite households, and also the pseudo-skarn mineralization. In every facies, at least 5 websites were sampled (with numerous measurements in each and every website), to be able to reach representative statistics for each and every lithology. The location of kappameter measurements is supplied in Figure four, and Table 1 summarizes the magnetic susceptibility characteristics of every single lithology.Minerals 2021, 11,6 ofFigure four. Magnetic map of your study region: (a) the magnetic anomaly on the left and (b) the anomaly reduced to the pole, on.
