In 2010, the American pika (Ochotona princeps fenisex) was denied federal protection based on limited evidence of persistence in low-elevation environments. Studies in nonalpine areas have been limited to relatively few environments, and it is unclear whether patterns observed elsewhere (e.g., Bodie, CA) represent other nonalpine habitats. This study was designed to establish pika presence in a...

The pyroclastic rocks of "The Crater", South Island, New Zealand belong to the Miocene, alkaline basaltic Dunedin Volcanic Group and represent an individual eruptive center with possible multiple vents. Three pyroclastic units have been separated at the study area based on textural and compositional features as well as their stratigraphic positions. The central part of The Crater comprises basa...

[1] We present new evidence for volcanic eruptions and lava flow emplacement on Venus within the last several decades. An integrated study of a radar‐dark lava flow unit in Bereghinia Planitia on Venus (∼28°E, ∼39°N) based on Magellan data obtained in 1993 reveals a significant apparent microwave thermal emission excess, consistent with increased subsurface temperature due to very recent lava f...

Athabasca Valles is a young outflow channel system on Mars that may have been carved by catastrophic water floods. However, images acquired by the High-Resolution Imaging Science Experiment camera onboard the Mars Reconnaissance Orbiter spacecraft reveal that Athabasca Valles is now entirely draped by a thin layer of solidified lava-the remnant of a once-swollen river of molten rock. The lava e...

Distribution Endemic to the six largest Ha-waiian islands. Size Greatly variable, typically reaches 20–24 m (66–79 ft) in height; may be much smaller on lava rock or boggy soils. Habitat Wide range, 1–2500 m (1–8200 ft) elevation with rainfall of 400–10,000 mm (16–400 in). Largest component of lowland and mon-tane wet and mesic forests, dry forests, subal-pine shrublands, and new lava flows. Ve...

Tracking the level of the lava lake in Halema‘uma‘u Crater, at the summit of Kīlauea Volcano, Hawai’i, is an essential part of monitoring the ongoing eruption and forecasting potentially hazardous changes in activity. We describe a simple automated image processing routine that analyzes continuously-acquired thermal images of the lava lake and measures lava level. The method uses three image se...

The Muria-Peninsula is a Quaternary volcano located in the northern Sunda arc. Its activity was controlled under high potassic and very magma series resulting leucite-rich trachyte pyroxene-rich basaltic-andesite. It strato-type that composed of lava, breccia, tuff layers, some dikes have volcanic craters maars varying age composition. study area covering volcanoes Muria, Genuk, Patiayam. This ...

Obsidian is a language for data-parallel programming embedded in Haskell. As the Obsidian programs are run, C code is generated. This C code can be compiled for an NVIDIA 8800 series GPU (Graphics Processing Unit), or for other high-end NVIDIA GPUs. The idea is that the style of programming used in Lava for structural hardware design [2] can be applied to data-parallel programming as well. Ther...

The effectiveness of lichens in degrading their rock substrates, leading to the first stages in the formation of soil, has long been discussed and opinions have varied widely (Jones, 1988; Syers & lskandar, 1973). Nevertheless, it is generally recognized that lichen encrusted rocks provide an ideal environment for studying the biological weathering of minerals since, unlike the situation in soi...

The Asunci6n rift, eastem Paraguay, is a remarkable structure, first noticed by Degraft. It is a segmented, "Iazy Z", left-stepping rlft system, starting at Asunci6n, to the west, with a NW-8E direction. It then tums next into a E-W treneling middle saction, finally resuming, to the east, its inltlal NW-8E course. Its endings, at both extremes, are ill-defined. Total E-W length is about 150 Km,...