Durante los últimos 30 años, el número de doctorados en antropología ha aumentado en un 70%, pero no ha habido un aumento correspondiente en la disponibilidad de nuevas plazas docentes. Como consecuencia, hoy los arqueólogos con doctorado se enfrentan a más competencia que nunca al solicitar puestos de profesor. En este artículo examinamos las instituciones de origen de los docentes en arqueología antropológica en Estados Unidos y Canadá y las universidades donde eventualmente terminan enseñando. Usando los datos derivados del

On planets with little erosion, thrust faults produce broad, asymmetric, positive-relief, linear to arcuate ridges -often referred to as lobate scarps- that remain largely unaltered, such that their topographic expressions are a measure of the structural uplift caused by the displacement and associated country-rock deformation of the faults. Here we map and systematically assess the structural relief of 24 thrust faults across Mars to infer their growth behavior. Our mapping indicates that the majority of individual thrust faults have simple, linear map traces with lengths of up to ~450 km, but that some thrust faults form systems of up to 1400 km in length. For the most topographically pronounced landforms, the structural relief developed above the fault is as great as ~3400 m. We then relate topographic measurements to the displacement on the underlying fault planes to study the displacement variations along the fault length. We find a variety of displacement distribution shapes of the fault systems, which we attribute to differences in fault growth that include unrestricted and restricted growth, linkage, and/or fault interaction. Finally, we relate the maximum displacements ( ) determined for each of the faults to their respective fault length (L) to establish a maximum displacement-to-length relationship. The observed scaling characteristics and order-of-magnitude scatter of our data are not uncommon for fault populations on Earth and tie in well with the map patterns, tectonic geomorphology, and systematic along-strike displacement distributions to have grown in a basement-block faulting style found in intra-plate tectonic settings on Earth.

Introduction Noctis LabyrinthusNoctis Labyrinthus, Mars, is situated east of the Tharsis rise, at the western end of Valles Marineris (Figure 1a). Despite being located between the biggest volcanic complex and largest canyon system on the planet, the exact nature and formational history of Noctis Labyrinthus is not well understood. The region sits on a topographic high and could be considered a dissected dome or plateau (Andrews-Hanna, 2012a, 2012b, 2012c) (Figure 1b). The region abounds with normal faults (Bistacchi et al., 2004;Masson, 1977) and pit craters. Large troughs cross-cut both the normal faults and pit craters (Figure 1b). Additionally, hillslope modification within the troughs of Noctis Labyrinthus is evidenced by landslides and periglacial features (Hajna et al., 2017;Rodriguez et al., 2016) that together are indicative of mass-wasting processes that have helped shape the troughs.The broad structural characteristics of Noctis Labyrinthus have been recognized since the original mapping from Viking imagery by Masson (1977), who concluded that the region resembled the East African