Pumping tests carried out in the fissured layer of a granitic hard-rock aquifer, interpreted at the observation wells by means of the analytical solution of Neuman and at the pumping wells using that one of Gringarten show the vertical anisotropy of this layer of the aquifer; the horizontal permeability being clearly and systematically higher than the vertical permeability. These results perfec...

Supervisory Soil Scientist, Rocky Mountain Forest and Range Experiment Station, Tempe, Arizona; and Soil Microbiologist, Pacific Southwest Forest and Range Experiment Station, Glendora, California. The weathering of parent rock may be an important source of some nutrients. The rates of weathering of the different parent rock materials vary and affect the inherent fertility and productivity of a...

This study was carried out on granitic rocks from the Biga Peninsula in order to investigate petrographic, and mineralogical properties comparison with mechanical strength properties. conducted four different locations where outcrop north south Peninsula: Lapseki (Şevketiye granite), Ezine (Kestanbol Bayramiç (Yassıbağ Edremit (Eybek granite). Field observations detailed petrographic studies of...

Many granitic intrusions display evidence of magma mixing processes. The interaction melts contrasting composition may play a significant role during their generation and evolution. Strzegom-Sobotka massif (SSM), located in the Sudetes (SW Poland) north-eastern part Bohemian Massif Central European Variscides, exhibits mingling on macro- micro-scales. The massif is composite intrusion, with fou...

Three-component wide-angle seismic data acquired in southern Tibet during Project INDEPTH show strong P-to-S converted reflections from reflectors that are aligned at a depth of approximately 15 kilometers beneath the northern Yadong-Gulu rift. These converted reflections are locally higher in amplitude than the corresponding P-wave reflections. Modeling of reflection mode conversion as a funct...

The Table 2 footnotes are incorrectly typeset in the body of the article, as paragraph 3 of the “Biogeographic scenarios, speciation, and the zone of radiation” subsection of the Results section. This can be found on page 12 of the article PDF. The footnotes should read: “Scenario 1 assumes that in the case of O. validus occurring in two archipelagos, the younger archipelago was colonised from ...

A new species of the genus Domene Fauvel, 1873-D. viriatoi n. sp.-is described from a granitic natural cavity in Serra da Estrela, Portugal. This subterranean species is diagnosed and compared with closely related species from the Iberian endemic subgenus Lathromene Koch, 1938. The external morphology and male genitalia are illustrated and information on the species` ecology is presented. A dic...

‘I fact, just about everything that was taught as recently as ten years ago about granitic magmatism has been turned on its head.’1 So concludes John Clemens in his overview paper about the origin of granite, published in the UK in the Proceedings of the Geologists’ Association. In his introduction to Clemens’s paper and the accompanying discussion, editorial board member W.J. French explains t...

Accelerated erosion in the form of landslides can be an undesirable consequence of clearcut logging on steep slopes. Forest managers need a method of predicting the risk of such erosion. Data collected after logging in a granitic area of northwestern California were used to develop a predictive equation. A linear discriminant function was developed that correctly classified almost 90% of the da...