The Roccacaramanico Conglomerate (RCC) is a prominent calcareous-clastic mega-bed intercalated within the Late Messinian-Early Pliocene pelitic succession of the La Queglia and Maiella flysh units in the central Apennines. In this study, we focused on studying some exposures of the RCC in the overturned limb of a kilometric-scale syncline. The outcrops present a complex array of fractures, including multiple systems of closely spaced cleavages, joints, and mesoscopic faults, which record the progressive deformation associated with Late Pliocene thrusting. Given the extent of the investigated sites and the large amount of data collected, we employed a multimethodology survey technique that integrated unmanned aerial vehicle (UAV) technologies and field digital mapping. Our primary goal was to reconstruct the 3D-digital outcrop model of the RCC and define the 3D pattern of fractures and their time-space relationships. The field survey played a critical role in determining the various sets of structures, their kinematics, the associated displacements and relative chronology. In addition, the methodology allows for evaluating the reliability of the applied remote survey techniques (i.e., using UAV) compared to those based on the direct measurements of structures using classic devices. Our approach demonstrates that the multi-methodology survey technique can be applied to understand the tectonic evolution of remote/discussed areas with complex structural settings by producing 3D virtual outcrop models and digital mapping of all geological features (Cirillo et al., 2022). In addition to our primary goal, we also proposed two alternative working methods and discussed their different fields of application. The first method involves using UAVs for photogrammetric surveys and ground-based instruments for direct measurements, while the second method entails using UAV-based image acquisition for high-resolution mapping of outcrops using Post Processing Kinematic (PPK) methods. These alternative methods have the potential to improve the accuracy of the data collected and expand the range of geological features that can be mapped.
Structural-geological analysis through Integration of PPK-UAV photogrammetry and digital field mapping
Cirillo D.;Cerritelli F.;Agostini S.;Bello S.;Lavecchia G.;Brozzetti F.
2023-01-01
Abstract
The Roccacaramanico Conglomerate (RCC) is a prominent calcareous-clastic mega-bed intercalated within the Late Messinian-Early Pliocene pelitic succession of the La Queglia and Maiella flysh units in the central Apennines. In this study, we focused on studying some exposures of the RCC in the overturned limb of a kilometric-scale syncline. The outcrops present a complex array of fractures, including multiple systems of closely spaced cleavages, joints, and mesoscopic faults, which record the progressive deformation associated with Late Pliocene thrusting. Given the extent of the investigated sites and the large amount of data collected, we employed a multimethodology survey technique that integrated unmanned aerial vehicle (UAV) technologies and field digital mapping. Our primary goal was to reconstruct the 3D-digital outcrop model of the RCC and define the 3D pattern of fractures and their time-space relationships. The field survey played a critical role in determining the various sets of structures, their kinematics, the associated displacements and relative chronology. In addition, the methodology allows for evaluating the reliability of the applied remote survey techniques (i.e., using UAV) compared to those based on the direct measurements of structures using classic devices. Our approach demonstrates that the multi-methodology survey technique can be applied to understand the tectonic evolution of remote/discussed areas with complex structural settings by producing 3D virtual outcrop models and digital mapping of all geological features (Cirillo et al., 2022). In addition to our primary goal, we also proposed two alternative working methods and discussed their different fields of application. The first method involves using UAVs for photogrammetric surveys and ground-based instruments for direct measurements, while the second method entails using UAV-based image acquisition for high-resolution mapping of outcrops using Post Processing Kinematic (PPK) methods. These alternative methods have the potential to improve the accuracy of the data collected and expand the range of geological features that can be mapped.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
