oalib
Search Results: 1 - 10 of 100 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /100
Display every page Item
Petrological Characteristics of the Peddavura Schist Belt and Adjacent Rocks in Eastern Dharwar Craton in Parts of Nalgonda District, Telangana State  [PDF]
Lakshmi Pagidoju, Naresh Bandari, Narsing Rao Alwal
Open Journal of Geology (OJG) , 2018, DOI: 10.4236/ojg.2018.82008
Abstract: The Peddavura greenstone Linear Belt, NW-SE trending, is formed in the Eastern part of the Dharwar Craton of south India, extended over 62.5 sqkm in Nalgonda and Guntur districts region. The entire belt is illustrated as Peninsular Gneiss. The Belt Study has attracted geologists for conducting further research to evaluate the crust forming process at the time of early volcanic eruption of Earth’s history. The South Indian Dharwar Craton depicts and exposes the crustal segments where geological activities took place consistently during the Precambrian. The PSB (Peddavura Schist Belt) mostly consists of meta volcanic (meta basalts), amphibolites, granites, dolerites, basaltic andesites, pegmatite and Banded Magnetite Quartzite’s (BMQ) rock types. The 20 represented rock samples made for thin section studies. Based on the Petrological studies minerals are showing uralitization, saussuritization in the granite with mylonite structures, perthite and dolerite are showing heavy metal such as rutile and other opaque minerals (Magnetite, hematite, and typical pyrite crystal) are present in different represented rock samples. The minerals are showing different alteration zones along with microstructures. Using the Petrological studies the minerals and rock types are identified in the study region.
Trace Elemental Expression in Soil Substratum and Floral Species in Selected Lateritic Profiles in the Northern Part of Kolar Schist Belt, Dharwar Craton, India  [PDF]
B. C. Prabhakar, B. N. Rashmi, R. V. Gireesh
International Journal of Geosciences (IJG) , 2017, DOI: 10.4236/ijg.2017.88057
Abstract: Extensive laterite cappings are observed in the northern part of Kolar schist belt and they are underlain by pillowed metabasalt and partially weathered auriferous cherty intercalations. To appraise the possible distribution of trace elements in both laterite cappings and in plants growing over there, a geobotanical study was conducted in the well exposed, almost flat to slightly undulating lateritic profiles in Jaderi-Holur-Nayakarahalli stretch in the northern part of Kolar schist belt. Due to humus-poor lateritic soil and scanty rainfall, the vegetation is sparse and scrubby. Shrub species are relatively more abundant than herbs and trees. The shrub species studied are Argyreia cuneata, Dodonaea viscosa, Carissa carandas, Ziziphus species, Barleria buxifolia and Atylosia scarbiocides. The herb species are mainly represented by Leucas ciliata, Pulicaria wightiana, Hyptis suaveolens, Tephrosia tinctoria, Trichodesma indicum, Stylosanthes fruticosa, Evolvulus alsinoides, Pavonia zeylanica, Orthosiphon diffusus, Waltheria indica and Stachytarpheta indica. Less frequent species included Acacia megaladena and Dolichandrone atrovirens. Geochemical analysis of different plant species and lateritic soil samples has been carried out. Cu, Cr, Zn, Ni, Co, As, Mn and Mg are in good concentration in soil but the same are impoverished in the plant species except Mn. A few analyses for Au show that its values are close to background concentration. However, plant uptake of Au appears to be better (25 - 86 ppb). The humic acid activity could have enabled gold to get absorbed by plants. While all other analyzed metals show higher range of concentration in soil compared to flora, gold shows a reverse relationship.
Phytotherapy associated with Jaundice in Chitradurga District, Karnataka  [PDF]
V.T. HIREMATH,T.C. TARANATH
International Journal of Medicinal and Aromatic Plants , 2011,
Abstract: India has one of world’s richest medicinal plant heritages. The wealth is not only in terms of the number of unique species documented, but also in terms of the tremendous depth of traditional knowledge for the uses of human & livestock health and also for agriculture. The medicinal plant species are used by various ethnic communities for human and veterinary health care, across the various ecosystems from Ladakh in the trans-Himalayas to the southern coastal tip of Kanyakumari and from the deserts of Rajasthan and kachch to the hills of the Northeast. Chitradurga, is the central district of Karnataka state with much racial and socio-cultural diversity. Beda’s, Besthas, Gollas, lambanis, are the tribes who are intimately associated with the local forests and traditional knowledge. Local traditional healers having practical knowledge of medicinal plants either for self-medication or for treating others often visit the surrounding forests to collect plant species. The present survey was conducted to collect information about plants used to treat Jaundice in different villages of Challakere taluk of Chitradurga district. Based on personal interviews in normal discussion and observation using questionnaire during study visits, ethno botanical data viz., local name, mode of preparation, medicinal uses were collected. The traditional health healers used 28 plant species, under 24 genera and 20 families to treat Jaundice. The survey also revealed that among the different plant parts used, whole plant is frequently used in 8 species, followed by root (6 species), stem (4), leaves (3 species), flower (2 species) and bark (1 species). The investigation concluded that, there is an urgent need to assess the medicinal plant diversity and conserve the traditional knowledge by proper documentation.
Functions and Fiscal Power of Panchayat Raj Institution Chitradurga Distract in Karnataka State
H.S.Praveen kumar,G.Ravi
Golden Research Thoughts , 2013, DOI: 10.9780/22315063
Abstract: The functioning of Panchayat Raj Institution in chitradurga consist of mainly transfer of funds for specific purpose from State as well as Central governments and local revenue mobilization by way of power to levy certain tax, fees and rates. As per the provisions of Karnataka Panchayat Raj Act 1993, the Grama Panchayats in Karnataka are empowered to have independent source of revenue in addition to the specific purpose grants which they receive from State and Central governments. Whereas, Zilla Panchayats and Taluk Panchayats do not have independent sources of revenue, instead they depend for finance on devolution of fund from the State and Central governments. The Karnataka Panchayat Raj Act 1993 was the following provisions pertaining to financial powers of Panchayat Raj Institutions in chitradurga district.
Occurrence of Microcerella halli (Engel) (Diptera, Sarcophagidae) in snake carrion in southeastern Brazil
Moretti, Thiago de C.;Allegretti, Silmara M.;Mello-Patiu, Cátia A.;Tognolo, Alexandre M.;Ribeiro, Odair B.;Solis, Daniel R.;
Revista Brasileira de Entomologia , 2009, DOI: 10.1590/S0085-56262009000200018
Abstract: the occurrence of 27 second-instar larvae of the flesh fly microcerella halli (engel, 1931) (diptera, sarcophagidae) in a carcass of a snake usually called as urutu, bothrops alternatus (duméril, bibron & duméril, 1854) (serpentes, viperidae, crotalinae) is reported. the snake was kept in captivity in a snake farm in morungaba, s?o paulo state, brazil. descriptions of reptile carcass colonization by insects and general biological data of this flesh fly are scarce and this necrophagic behavior is described for the first time in literature.
Issues and Limitations of Broad Band Remote Sensing of Kimberlite—A Case Example from Kimberlites of Dharwar Craton, India  [PDF]
Arindam Guha, S. Ravi, D. Ananth Rao, K. Vinod Kumar, E. N. Dhananjaya Rao
International Journal of Geosciences (IJG) , 2013, DOI: 10.4236/ijg.2013.42035
Abstract:

Present study attempts to understand the potential of multispectral ASTER (Advanced space borne thermal emission and reflection radiometer) data for spatial mapping of kimberlite. Kimberlite is an economic rock known for hosting diamond. Kimberlite also has petrogenetic importance for giving us clue on the composition of lower part of the mantle. Kimberlites often contain serpentine, carbonate minerals; which have their diagnostic spectral signatures in short wave infrared (SWIR) domain. In the present study, attempt is made to delineate kimberlite from adjacent granite-granodiorite gneiss based on processing of the ASTER data as ASTER’s spectral channels can detect some of the diagnostic absorption features of kimberlites. But it has been observed that the kimberlites are difficult to be delineated by processing the ASTER data using correlative information of both sub-pixel and per-pixel mapping. Moreover, smaller spatial size of kimberlites with respect to pixel size of ASTER SWIR channels further obscures the spectral feature of kimberlite. Therefore, an attempt is also made to understand how intra pixel spectral mixing of kimberlite and granite granodiorite-gneiss modifies the diagnostic spectral feature of kimberlite. It is observed that spectral feature of kimberlites would be obscured when it is has very small spatial size (one-tenth of pixel) with respect to pixel size. Moreover, calcrete developed in the adjacent soil has identical absorption feature similar to the spectral features of kimberlites imprinted in the respective ASTER convolved spectral profiles. This also has resulted

Delamination and destruction of the North China Craton
Shan Gao,JunFeng Zhang,WenLiang Xu,YongSheng Liu
Chinese Science Bulletin , 2009, DOI: 10.1007/s11434-009-0395-9
Abstract: This article presents an overview on recent developments in studies of chemical and physical processes of lithospheric delamination with respect to destruction of the North China Craton. It is emphasized that the pyroxenite source resulting from interaction between eclogite-derived melt and peridotite is a direct consequence of delamination. The pyroxenite source thus formed has unique mineralogical and geochemical features, which characterize Mesozoic basalts of the North China Craton. Melt-peridotite interaction played an important role in refertilization of cratonic lithospheric mantle, leading to density increase, weakening and final destabilization of the North China Craton. The nature of the melt is the key to distinguish mechanisms of destructing this craton.
Coesite in the eclogite and schist of the Atantayi Valley, southwestern Tianshan, China
Zeng Lü,LiFei Zhang
Chinese Science Bulletin , 2012, DOI: 10.1007/s11434-012-4979-4
Abstract: Coesite is an indicator mineral of ultra-high-pressure metamorphism. Since coesite was reported in the Habutengsu Valley, we have also found it in eclogite and schist from the Atantayi Valley in the southwestern Tianshan, China. Petrographic and micro-Raman analyses were carried out for the Atantayi metamorphic rocks and coesite was recognized in the predominant rock types, i.e. schist and eclogite, from three sections. The coesite-bearing schist consists mainly of garnet, Na-Ca amphibole, quartz, white mica and albite; the coesite-bearing eclogite is mainly composed of omphacite, garnet, glaucophane and zoisite. The coesite occurs as various mineral inclusions within porphyroblastic garnet. Findings of coesite in eclogite and associated schist indicate not only the regional in situ formation of the Atantayi ultra-high-pressure eclogite, but also the large areal extent of ultra-high-pressure metamorphism in southwestern Tianshan, extending up to 10 km north-south and 60–80 km east-west.
Lestodelphys halli EN LA PROVINCIA DE SANTA CRUZ (ARGENTINA): PRIMER HALLAZGO EN UN SITIO ARQUEOLóGICO EN LA COSTA PATAGóNICA Lestodelphys halli IN THE PROVINCE OF SANTA CRUZ (ARGENTINA): FIRST FINDING IN AN ARCHAEOLOGICAL SITE IN COAST PATAGóNICA
MIGUEL A ZUBIMENDI,SERGIO BOGAN
Magallania , 2006,
Abstract: En esta nota nos proponemos tres objetivos. Primero, dar a conocer la presencia de Lestodelphys halli (Thomas 1921) en un sitio de la localidad arqueológica de Punta Medanosa, Provincia de Santa Cruz (Argentina). Segundo, realizar una breve caracterización de la especie, así como una descripción de los rasgos osteológicos de interés para su determinación en otros contextos arqueológicos. Tercero, realizar un repaso bibliográ co de sitios en los cuales se ha registrado la presencia de L. halli en la Republica Argentina In this paper we have proposed three main objectives: rst, to inform the presence of Lestodelphys halli (Thomas 1921) in a site in the archaeological locality of Punta Medanosa, Santa Cruz province (Argentina). Second, to make a brief characterization of the biology, distribution, etc. of this taxon, and a description of osteological characters of interest for archaeological context. Third, to make a systematic description of the presence of L. halli in archaeological sites in the Argentine Republic, with an emphasis on the kind of information given in each case
Lestodelphys halli EN LA PROVINCIA DE SANTA CRUZ (ARGENTINA): PRIMER HALLAZGO EN UN SITIO ARQUEOLóGICO EN LA COSTA PATAGóNICA
ZUBIMENDI,MIGUEL A; BOGAN,SERGIO;
Magallania (Punta Arenas) , 2006, DOI: 10.4067/S0718-22442006000200010
Abstract: in this paper we have proposed three main objectives: ?rst, to inform the presence of lestodelphys halli (thomas 1921) in a site in the archaeological locality of punta medanosa, santa cruz province (argentina). second, to make a brief characterization of the biology, distribution, etc. of this taxon, and a description of osteological characters of interest for archaeological context. third, to make a systematic description of the presence of l. halli in archaeological sites in the argentine republic, with an emphasis on the kind of information given in each case
Page 1 /100
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.