The InSight lander rests on a regolith-covered, Hesperian to Early Amazonian lava plain in Elysium Planitia within ∼27-m-diameter, degraded impact crater called Homestead hollow. km cm-scale stratigraphy beneath the is relevant mission's geophysical investigations. Geologic mapping and statistics indicate that ∼170 m of mostly basaltic lavas are underlain by Noachian (∼3.6 Ga) materials possibl...

Road constructing in Ethiopia is increasingly demand to meet its medium and long term development programs. Most internal road of Oromia cities/town are cobblestone gravel. Some portions along the alignment proposed existing roads traversed low resistance subgrade that affect stability upper layers cobblestones. Structural failures observed on cobblestones roads, would it be constructed by good...

Electrofishing-based estimates of fish abundance are common. Most population models assume that samples are drawn from a closed population, but population closure is sometimes difficult to achieve. Consequently, we individually electrofished 103 radio-tagged trout of two species, westslope cutthroat trout Oncorhynchus clarkii lewisi and brook trout Salvelinus fontinalis, in five streams in west...

Introduction: The emerging subdiscipline of martian meteoritics currently involves the in-situ study of exogenic rocks found by roving spacecraft on the martian surface. Because of meteorite sensitivities to mineral-water interactions, their chemical weathering in equatorial martian environments carries significance for studies of water occurrence and behavior, calibration of climate models, an...

Fish communities in the shallow waters (9–20 m depth) of outer Malangen (69 o N), Northern Norway was studied to investigate effects season, bottom substrate associations and population dynamic parameters on fish assemblages. In four fieldtrips during one year at locations, were sampled by trammel nets composition monitored underwater video. A total 16 species caught, including from Pleuronecti...

Significant growth in mountain rivers research since 1990 has promoted the concept that canyon-confined have complex topographic features nested from base- to flood-stages due canyon structure and abundant large bed elements. Nesting means literally structures inside of structures. Mathematically, nesting multiple individual repeating patterns exist at different frequency, amplitude, phasing, c...