Thrust sequence and syntectonic sedimentation in a piggy-back basin: the Oligo-Aquitanian Mula–Pliego Basin (Internal Betic Zone, SE Spain)
The Oligo-Aquitanian deposits of the Mula–Pliego basin consist of a marine carbonate platform assemblage (bottom), transitioning into a turbidite wedge (top). This evolution was controlled by tectonics in a piggy-back basin by means of three main mechanisms: first, a flexural tectonic event created the basin; later on, blind-fault-propagation folds deformed it progressively from south to north; finally a tectonic event destroyed the basin. To cite this article: M. Martin-Martin, A. Martin-Algarra, C. R. Geoscience 334 (2002) 363–370.
La formation As, datée de l'Oligocène, est impliquée dans les charriages des unités malaguides supérieures de la Sierra Espuña (zones internes bétiques, province de Murcie, Espagne)
Resume La cartographie, l'etude lithostratigraphique et la datation paleontologique du Tertiaire malaguide de la Sierra Espuna ont permis de definir la formation As et d'etablir sa position tectonique. Elle est composee de conglomerats, gres et calcaires lithoclastiques, caracterises surtout par la presence de galets bien arrondis de quartz, et s'est deposee dans des milieux marins littoraux. Cette formation, longtemps consideree comme eocene (≪ Auversien ≫) et post-tectonique, a ete datee de l'Oligocene inferieur haut-Oligocene superieur bas, et se trouve largement chevauchee par le Mesozoique de la nappe malaguide superieure de Perona.
Remotely-Piloted Helicopter Citrus Yield Map Estimation
A remotely-piloted Gas Xcell mini-helicopter with GPS, wireless Ethernet, and a machinevision system was flown over orange trees to take overhead images. The individual tree images were processed to estimate the number of orange pixels in the images. The fruit yield of individualtrees at harvest a month later had an r-squared value of 0.373 with the number of orange pixels onthe irrigated tree images. While it was demonstrated that a remotely-piloted mini-helicopter could beused to acquire useful overhead images of citrus trees, substantial further research is needed toimprove the accuracy of estimates of individual tree yields or health.