IDENTIFICAÇÃO DAS FEIÇÔES GRANÍTICAS DO MUNICÍPO DE IRAUÇUBA-CEARÁ

A exumação de rochas graníticas do Complexo Tamboril-Santa Quitéria, especificamente, na superfície de aplainamento do município de Irauçuba, Ceará, tem revelado uma grande variedade de feições geomorfológicas que se justificam por fatores litológicos e evidentes flutuações climáticas cenozoicas, comandadas, sobretudo, por morfogênese mecânica, associada a climas secos. São relevos residuais como, maciços, cristas, inselbergs, inselguebergs, lajedos e blocos saprolitizados (boulders) em diferentes graus de desenvolvimento que se sobressaem em meio à superfície erosiva rebaixada, regionalmente conhecida como depressão sertaneja. Nesse trabalho, foram identificadas diferentes formas de relevo granítico condicionadas, sobretudo por intempéries de subsuperfície, controladas por falhas e fraturas, e por remoção do regolito através da erosão superficial, além de eventos de esfoliação. Essas formas graníticas constituem peças fundamentais na compreensão da evolução paleoclimática do município de Irauçuba. Para a realização do presente trabalho foram usadas as seguintes metodologias: revisão bibliográfica, levantamento cartográfico e trabalho de campo.Palavras-chave: Feições graníticas; Superfícies de aplainamento; Erosão diferencial. ABSTRACTThe granitic rocks exhumation of Complexo Tamboril-Santa Quitéria, specifically, on the planing surface of Irauçuba county, Ceará, has revealed a great variety of geomorphological features that are justified by lithologic factors and evident Cenozoic climatic fluctuations, mainly, headed by mechanical morphogenesis, associated with dry climates. Residual reliefs like rocky massives, residual ridges, inselbergs and inselguebergs, slab stones and boulders in different degrees of development stand out in the middle of the lowered erosive surface, regionally known by “depressão sertaneja”. In this study, different forms of granite relief were identified, specially conditioned by subsurface erosion, controlled by geological faults and fractures, but also by regolith removal through surface erosion, plus exfoliation spheroidal events. These granitic features are fundamental in paleoclimatic evolution understanding of Irauçuba municipality. For the accomplishment of the present work the following methodology was used: bibliographical revision, cartographic survey and field work. For the accomplishment of the present work the following methodology was used: bibliographical revision, cartographic survey and field work.Keywords: Granitic features; Planing surface; Differential erosion.RESUMENLa exhumación de rocas graníticas del Complejo tamboril-Santa Quitéria, específicamente en la superficie de aplanado del municipio de Irauçuba, Ceará, ha revelado una gran variedad de rasgos geomorfológicos que se justifican por factores litológicos y evidentes fluctuaciones climáticas cenozoicas, comandadas principalmente por morfogénesis mecánica, asociada a climas secos. Son relieves residuales como, macizos, crestas, Inselbergs, inselguebergs, losas y bloques saprolitizados (Boulders) en diferentes grados de desarrollo que sobresalen en medio de la superficie erosiva rebajada, regionalmente conocida como depresión sertaneja. En este trabajo, se identificaron diferentes formas de relieve granítico condicionadas, principalmente por intemperies de subsuperficie, controladas por fallas y fracturas, y por eliminación del regolito a través de la erosión superficial, además de eventos de exfoliación. Estas formas graníticas constituyen piezas fundamentales en la comprensión de la evolución paleoclimática del municipio de Irauçuba. Para la realización del presente trabajo se utilizaron las siguientes metodologías: revisión bibliográfica, levantamiento cartográfico y trabajo de campo.Palabras clave: Facciones graníticas; Superficies de aplanado; Erosión diferencial.

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Teknologi Pengolahan Pakan Berbahan Indigofera zollingeriana: PKM Sekolah Petani Desa BUMDES Belabori, Mengatasi Krisis Pakan di Musim Kemarau

JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) ◽

10.36339/je.v4i1.256 ◽

2020 ◽

Vol 4 (1) ◽

pp. 15

Author(s):

Marhamah Nadir ◽

Kusumandari Indah Prahesti ◽

Sartika Laban

Keyword(s):

Animal Husbandry ◽

Nutrient Content ◽

Field Work ◽

Dry Season ◽

Research Results ◽

Transfer Of Technology ◽

Long Time ◽

Indigofera Zollingeriana ◽

Dry Climates ◽

Main Component

The availability of quality forage in the dry season is an obstacle to increase livesctok productivity. The highest livestock production cost is feed, 60-70% of the total livestock business needs, so feed is the main component for animal husbandry development. Indigofera zollingeriana is a legume plant that can grow well for a long time as a Forage (HMT), adapts very well to diverse environmental conditions, and is tolerant to long dry climates. Another advantage of this plant is the high nutrient content, which is 35% protein, 15% crude fiber, 86% digestibility and very low anti-nutrient content. The advantages of this plant need to be shared with the community, especially farmers. Belabori Prosperous Village-owned business entity, is one of the BUMDES that has developed Indigofera since 2018, but the community has not utilized this plant optimally. Belabori Village is an area with a significant number of cattle including cattle, goats and poultry. To disseminate the use of Indigofera, Sekolah Petani Desa program is conducted, a learning house with lecturers, students, farmers, breeders and Bumdes to process Indigofera into nutritious feed and to be used in the dry season. The purpose of “Sekolah Petani Desa” activities is the transfer of technology of research results in the laboratory to the field. SPD activities become a direct application media for campus research results to the field of farmers and ranchers and provide invaluable experience for researchers, ranchers and students who are directly involved in community service activities that are integrated with the field work practices of animal husbandry students. This activity was successfully carried out and achieved the output target, namely breeders can process Indigofera into green concentrate flour, pellets, UMB, hay and silage. Indigofera is the main source of protein for cattle and goats in the village of Belabori and is used by Bumdes to be a source of income through green concentrate businesses.

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Radiometric Ages of Granitic Rocks, Southwestern Nova Scotia

Canadian Journal of Earth Sciences ◽

10.1139/e73-106 ◽

1973 ◽

Vol 10 (8) ◽

pp. 1201-1210 ◽

Cited By ~ 7

Author(s):

R. F. Cormier ◽

T. E. Smith

Keyword(s):

Nova Scotia ◽

Field Work ◽

Granitic Rocks ◽

Lower Paleozoic ◽

Granite Emplacement ◽

Radiometric Ages ◽

Eastern Half

Granitic rocks comprising the eastern half of the main batholith of southwestern Nova Scotia have been studied. The granitic rocks intrude Lower Paleozoic metasediments of the Meguma Group. Field work, the chemistry and petrology of the granitic rocks, and Rb–Sr whole-rock isochron dates indicate that there were at least two episodes of granite emplacement, the earlier about 415 m.y. ago and the later about 350 m.y. ago. Samples from a much smaller pluton some 65 mi (104 km) away from the study area were also dated and are correlated with rocks in the main batholith.

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Perfil do geoturista do Parque Estadual da Serra do Rola-Moça (MG)

Revista Brasileira de Ecoturismo (RBEcotur) ◽

10.34024/rbecotur.2016.v9.6539 ◽

2016 ◽

Vol 9 (3) ◽

Author(s):

Ricardo Eustáquio Fonseca Filho ◽

Gabriela Sousa Ribeiro

Keyword(s):

Protected Area ◽

Educational Program ◽

Field Work ◽

Minas Gerais ◽

Natural Protected Areas ◽

Qualitative And Quantitative ◽

Quadrilátero Ferrífero ◽

Level I ◽

Tourist Demand ◽

Geomorphological Features

O Parque Estadual da Serra do Rola-Moça (PESRM) é uma unidade de conservação de Proteção Integral em Minas Gerais, com características geológicas e geomorfológicas que o caracterizam como um geossítio do Geoparque do Quadrilátero Ferrífero, com alto potencial para o geoturismo. A pesquisa teve por objetivo conhecer o perfil do visitante do PESRM, na tentativa de identificar se há entre os visitantes potenciais geoturistas. A metodologia incluiu revisão bibliográfica e digital, e trabalho de campo, por meio da aplicação de questionários estruturados qualitativo-quantitativo a 50 visitantes. Os resultados demonstram que o visitante do Parque, em sua maioria, não sabe o que é geoturismo (57%) e que está em um geoparque (64%), é mineiro (86%), homem (68%), casado (58%), jovem (68% entre 26 e 45 anos de idade), católico (42%), viaja com a família (36%), excursionista (97,96%), utiliza o veículo próprio (74%), motivado por contemplação da natureza (36%), economicamente da classe B (44%) e boa escolaridade (50% nível superior). Desta forma, o perfil do geoturista é de “nível I” (curioso) demonstrando necessidade de melhor interpretação do segmento por meio de um programa educacional de uso público para as geociências. Geotourist Profile of “Serra do Rola-Moça” State Park (MG, Brazil) ABSTRACT The Rola-Moça Range State Park is an Integral Protection nature protected area in Minas Gerais (MG), Brazil, with geological and geomorphological features that characterize it as a geosite in the Ferriferous Quadrangle Geopark, with high potential for geotourism. The research aimed to know the Park visitor profile in an attempt to identify whether there is among potential visitors geotourists. The methodology included bibliographic and digital review, and field work, through the application of qualitative and quantitative structured questionnaires to 50 visitors. The results show that the visitor's Park, mostly, do not know what is geotourism (57%) and is in a geopark (64%); is from MG (86%); male (68%); married (58%); young (68% between 26 and 45 years old); Catholic (42%); traveling with family (36%); excursionist (97.96%); using the vehicle itself (74%); driven by the contemplation of nature (36%); economically middle class (44%); and good education (50% higher level). Thus, the geotourist profile is "Level I" (curious) demonstrating need for better interpretation of the segment through an educational program for public use for the geosciences. KEYWORDS: Geotourist; Tourist Demand; Rola-Moça Range State Park; Natural Protected Areas; Ecotourism.

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Geological Review of the Rafflesia Trail, Near Kampung Jedip, Lojing Highlands: Inputs for a Nature-Based Tourism Site in Kelantan, Malaysia

Journal of Tropical Resources and Sustainable Science (JTRSS) ◽

10.47253/jtrss.v3i1.694 ◽

2015 ◽

Vol 3 (1) ◽

pp. 86-97

Author(s):

Dony Adriansyah Nazaruddin ◽

Nur Syazwani Md. Fadilah ◽

Zurfarahin Zulkarnain

Keyword(s):

Field Work ◽

Structural Features ◽

Geological Structure ◽

Granitic Rocks ◽

Mountainous Area ◽

Quaternary Deposits ◽

Rock Body ◽

Porphyritic Granite ◽

Tourism Attractions ◽

Rock And Soil

A geological review was performed in the Rafflesia Trail, near Kampung Jedip, in Lojing Highlands, Kelantan, Malaysia. This area is famous for its Rafflesia and has become one of tourism attractions in the state of Kelantan. However, the recent rampant agricultural activities have significant effects to the area. The objective of this study is to give substantial geological inputs in terms of geomorphology, lithology, structural features, and geohazard potentials in the study area. Desk study was conducted by reviewing some literatures related to the topic and the study area. Field work was organized during a scientific expedition in January 2014 to collect data, samples, and photographs. Geomorphologically, the study area is mountainous area which mostly consists of mountain ridges and mountain valleys. Some fluvial features occur in the study area, such as waterfalls, cascades, rapids, runs, pools, potholes, lateral bars, and point bars. This area is composed of granitic rocks, mostly porphyritic granite, and covered by superficial Quaternary deposits. The geological structure that is commonly found in the study area is joints, where they divide the rock body into large, roughly angular blocks, which is called as brecciation. The potential geohazard in the study area is landslides, where some of them are composed of soil only and some others are mixtures of rock and soil. This study recommends this area should be supported as a sustainable nature-based tourism site in Lojing Highlands, Kelantan.

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Chronology of sedimentation in Colesbukta, Spitsbergen (Svalbard Archipelago): the results of the 2018 expedition

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/937/4/042081 ◽

2021 ◽

Vol 937 (4) ◽

pp. 042081

Author(s):

N I Meshcheryakov ◽

I S Usyagina ◽

V V Sharin ◽

V A Dauvalter ◽

G N Dukhno

Keyword(s):

Catchment Area ◽

Temporal Dynamics ◽

Atmospheric Precipitation ◽

Sedimentation Rates ◽

Climatic Fluctuations ◽

Svalbard Archipelago ◽

The Individual ◽

Shallow Bay ◽

Geomorphological Features ◽

Sedimentation Processes

Abstract This paper presents results of a study of sedimentation in Colesbukta (Isfjorden, Spitsbergen), a typical example of sedimentation in a shallow bay of the Svalbard Archipelago. We have examined sediment samples from several cores collected in Colesbukta in May 2018. To meet the goals of this study, geomorphological features of the Colesbukta catchment area have been identified and described. The lithological characteristics of bottom sediments from the study area have been described and their spatial and temporal changes analyzed. The chronology of sedimentation has been reconstructed by 210Pb and 137Cs. We have calculated sedimentation rates in Colesbukta and their temporal dynamics over the several latest decades. According to our estimations, the sedimentation rate has increased by 2–4 times compared to the middle of the 20th century and ranges from 0.2 to 0.46 mm/year depending on the individual conditions of sedimentation in each part of the bay. Climatic fluctuations are shown to have a direct impact on sedimentation processes in Colesbukta. We have revealed that on the periphery of the studied area the rate of sedimentation better depends on the temperature regime while in its central part it is rather a result of the amount of atmospheric precipitation.

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Soil–landscape response to mid and late Quaternary climate fluctuations based on numerical simulations

Quaternary Research ◽

10.1016/j.yqres.2013.01.001 ◽

2013 ◽

Vol 79 (3) ◽

pp. 452-457 ◽

Cited By ~ 13

Author(s):

Sagy Cohen ◽

Garry Willgoose ◽

Greg Hancock

Keyword(s):

Climate Change ◽

Late Quaternary ◽

System Modeling ◽

Surface Erosion ◽

Climatic Fluctuations ◽

Modeling And Analysis ◽

Physical Weathering ◽

Quaternary Climate ◽

Soil Landscape ◽

Landscape Response

AbstractWe use a numerical dynamic soil–landscape model to study one aspect of the spatio-temporal soil–landscape evolution process, the effect of climatic fluctuations on soil grading distribution in space and time in response to the interplay between physical weathering and surface erosion (soil mineralogical fluxes). We simulate a synthetic soil–landscape system over the middle and late Quaternary (last 400 ka). The results show that (1) soil–landscape response to climate change is non-linear and highly spatially variable, even at hillslope scale; and (2) soil–landscape adjustment to climate change can lag tens of thousands of years and is both spatially and temporally variable. We propose that the legacy of past climatic condition (i.e. last glacial maximum) in modern soil–landscape systems vary considerably in space. This implies that the spatiotemporal uniformity in which soil is typically described in Earth system modeling and analysis (e.g. carbon cycle) grossly underestimates their actual complexity.

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Comments on collision mechanics in ring systems

International Astronomical Union Colloquium ◽

10.1017/s0252921100101472 ◽

1984 ◽

Vol 75 ◽

pp. 407-422

Author(s):

William K. Hartmann

Keyword(s):

Asteroid Belt ◽

Surface Erosion ◽

Surface Layers ◽

Ring Systems ◽

Eclipse Observations ◽

Saturn’S Rings ◽

Saturn's Rings

ABSTRACTThe nature of collisions within ring systems is reviewed with emphasis on Saturn's rings. The particles may have coherent icy cores and less coherent granular or frosty surface layers, consistent with thermal eclipse observations. Present-day collisions of such ring particles do not cause catastrophic fragmentation of the particles, although some minor surface erosion and reaccretion is possible. Evolution by collisional fragmentation is thus not as important as in the asteroid belt.

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