CHARACTERISTIC OF LITORAL SEDIMENT ON SINDULANG SATU COASTAL

2013 ◽  
Vol 1 (1) ◽  
pp. 48
Author(s):  
Junet I. S. Korwa ◽  
Esry T. Opa ◽  
Rignolda Djamaludin
Keyword(s):  
Coastal Area ◽  
Littoral Zone ◽  
Sea Water ◽  
Fine Sand ◽  
Coarse Sand ◽  
Water Infiltration ◽  
Physical Change ◽  
Medium Sand ◽  
Special Concern ◽  
Sand Material

Coastal area is defined as the interface point where sea and land meet. To the land the area is limited to the area influenced by the sea factors (wind, tide, and sea water infiltration), while to the sea is limited to the area influenced by the land factors. Special concern need to be addressed in regarding to the use of coastal area. As part of the coastal area, littoral zone is very dynamics due to factors of oceanography and human activities. The same fact is experienced by the littoral zone in Sindulang Satu. Physical change has been the fact in this littoral zone.  In relation to the change, it is considered of importance to describe and analysis the characteristics of the sediment and related oceanography factors.  Result of observation indicated that sediment in the littoral zone consist of fine sand, medium sand, very fine sand, coarse sand and pebbles. Silt and boulder were also found. Distribution of sediment granulometry showed that the littoral zone was dominated by fine sand material, bad sorted, asymetrical to small size and symmetrical granulometry, and mesokurtic. Tidal current is the type of current working in the littoral zone and it plays importance role in the sediment.  

scholarly journals CHARACTERISTIC OF LITORAL SEDIMENT ON SINDULANG SATU COASTAL

2013 ◽  
Vol 1 (1) ◽  
pp. 48
Author(s):  
Junet I. S. Korwa ◽  
Esry T. Opa ◽  
Rignolda Djamaludin
Keyword(s):  
Coastal Area ◽  
Littoral Zone ◽  
Sea Water ◽  
Fine Sand ◽  
Coarse Sand ◽  
Water Infiltration ◽  
Physical Change ◽  
Medium Sand ◽  
Special Concern ◽  
Sand Material

Coastal area is defined as the interface point where sea and land meet. To the land the area is limited to the area influenced by the sea factors (wind, tide, and sea water infiltration), while to the sea is limited to the area influenced by the land factors. Special concern need to be addressed in regarding to the use of coastal area. As part of the coastal area, littoral zone is very dynamics due to factors of oceanography and human activities. The same fact is experienced by the littoral zone in Sindulang Satu. Physical change has been the fact in this littoral zone.  In relation to the change, it is considered of importance to describe and analysis the characteristics of the sediment and related oceanography factors.  Result of observation indicated that sediment in the littoral zone consist of fine sand, medium sand, very fine sand, coarse sand and pebbles. Silt and boulder were also found. Distribution of sediment granulometry showed that the littoral zone was dominated by fine sand material, bad sorted, asymetrical to small size and symmetrical granulometry, and mesokurtic. Tidal current is the type of current working in the littoral zone and it plays importance role in the sediment.

scholarly journals Compositional and industrial assessment of Isua-Akoko, Akure, Ayadi and Lafe (Ode Aye) clay deposits of Ondo state, Nigeria

1970 ◽  
Vol 21 (1) ◽  
pp. 41-49
Author(s):  
O Adegbuyi ◽  
GP Ojo ◽  
AJ Adeola ◽  
MT Alebiosu
Keyword(s):  
Chemical Properties ◽  
Fine Sand ◽  
Coarse Sand ◽  
Grain Size Analysis ◽  
Size Analysis ◽  
Medium Sand ◽  
Southwestern Nigeria ◽  
Firing Test ◽  
Clay Deposits ◽  
Ondo State

The physical and chemical properties of clay deposits around Isua-Akoko, Akure, Lafe and Ayadi in Ondo State southwestern Nigeria have been examined. The results have shown that Isua-Akoko, Akure and Lafe Clays are plastic fire clays while Ayadi clay is kaolinite. Grain size analysis reveals that Isua Akoko Clay contains 45% of clay, 18% silt, 12% fine sand,14% medium sand and 11% coarse sand and no gravel; Akure clay contains 42% clay, 14% silt, 13% fine sand, 20% medium sand and 8% coarse sand with 1% gravel. Lafe Clay contains 21% clay, 8% silt, 25% fine sand, 37% medium sand and 8% coarse sand with 1% gravel while Ayadi clay contains 83% clay and 17% silt. The liquid limits of these clay samples range from 41% to 73%% and plastic limits range from 18% to 26% respectively. The chemical analysis reveals that the most abundant mineral is silica (60.97%) and aluminum was next in abundance (23.69%) while other oxides are low. The results show that Isua-Akoko and Akure are residual while Lafe and Ayadi are sedimentary and transported Clays. The firing test, PH, and bleaching tests of the clays are also discussed. The chemical and physical characteristics of the clay deposits are strongly indicative of their industrial importance in the production of ceramics, refractories, paving bricks, paint and pharmaceutical products.KEYWORDS: Kaolinite, fire clay, gravel, ceramics and alumina.

scholarly journals Evaluation of hydrogeological conditions through vertical electrical soundings survey at Mankiganj pourashava, Manikganj, central part of Bangladesh

2016 ◽  
Vol 27 (2) ◽  
pp. 109-120 ◽  
Author(s):  
ASM Woobaidullah ◽  
M Moklesur Rahman ◽  
M Zohir Uddin
Keyword(s):  
Fine Sand ◽  
Coarse Sand ◽  
Silty Clay ◽  
Medium Sand ◽  
Arsenic Level ◽  
Near Surface ◽  
Tube Wells ◽  
Top Soil ◽  
Potable Water Supply ◽  
Electrical Soundings

The Pourashava area of Manikganj, located in the central part of Bangladesh is treated as arsenic hotspot in the country as the outcome of various studies concludes that almost 80% of the domestic tube wells at this area exceed arsenic level of Bangladesh standard (50 ?g/l) for drinking water. To enhance the potable water supply in the area, 15 geoelectric soundings survey using Schlumberger configuration with spreading AB/2 = 300 meters has been executed to decipher the subsurface lithology distribution and aquifers at different depths, to determine the lateral and vertical extent of aquifer at the area. Correlation of the analyzed VES results with primary and secondary borelogs, the subsurface sequence of the area is broadly divided into two geoelectric units. Firstly, the near surface geoelectric unit of resistivity less than 20.0 ?-m represents the top soil composed of silty clay to clay. The thickness of this layer varies from 1 meter to 5 meters. The second geoelectric unit represents the sand layer and is characterized by a resistivity range of 21.0 to 190.0 ?-m. This unit encompasses the very fine sand with variable thickness of 2 to 248m while resistivity is from 21.0 to 30.0 ?-m, very fine to fine sand having thickness from 174-280m and geoelectric value ranges from 31.0 to 40.0 ?-m, fine sand with resistivity from 44.0 to 50.0 ?-m, fine to medium sand having resistivity from 51.0 to 70.0 ?-m, medium sand and medium to coarse sand with resistivity value 75.0 to 110.0 ?-m, and 140.0 to 190.0 ?-m, respectively. The ultimate thickness of this unit could not be determined due to limited spread of survey but at least continues to a depth of 300 m. In the context of groundwater storage, the second geoelectric unit acts as the regional aquifer and is used for groundwater development in the Pourashava area for water supply.Bangladesh J. Sci. Res. 27(2): 109-120, December-2014

A STUDY OF THE MINERALOGICAL COMPOSITION OF SAND IN SOUTHERN ONTARIO

1959 ◽  
Vol 39 (2) ◽  
pp. 185-196 ◽  
Author(s):  
Carol I. Dell
Keyword(s):  
Mineralogical Composition ◽  
Fine Sand ◽  
Coarse Sand ◽  
Heavy Minerals ◽  
Plant Nutrient ◽  
Coarse Silt ◽  
Medium Sand ◽  
Sand Fraction ◽  
Southern Ontario ◽  
Mineralogical Study

A mineralogical study of the fine sand fraction of unweathered tills and stratified sands chosen to represent the deposits of the major ice lobes of southern Ontario was carried out. In addition, a few analyses were made of the coarse silt and coarser sands.In general there was the same variety of minerals in all samples and they varied only in their proportions. Tills overlying Palaeozoic bedrock contained abundant carbonates and shale fragments constituting up to 70 per cent of some fine sands. In the coarse sands, carbonates and shale increased sharply. In the coarse silt and fine sand, feldspars were more abundant than quartz whereas in the medium and coarse sand the reverse was true. Quartz increased in quantity with increasing grain size and reached a maximum in the medium sand. Heavy minerals usually constituted less than 15 per cent of the fine sand. Some of the minerals present in the coarse silt and fine sand were not found in the coarser sands. Usually the order of abundance of the heavy minerals was: hornblende, garnet, micas, magnetite, pyroxenes and sphene. Epidote, rutile, apatite, tourmaline, staurolite, kyanite and others were also noted. A chart listing the plant nutrient elements found in these minerals was prepared.

Application and Research on Material Properties of Sand Consolidating Agent

2011 ◽  
Vol 99-100 ◽  
pp. 1186-1190 ◽  
Author(s):  
Shen Gang Li ◽  
Wen Zhao ◽  
Di Wu ◽  
You Ping Li
Keyword(s):  
Particle Size ◽  
Material Properties ◽  
Fine Sand ◽  
Coarse Sand ◽  
Cement Grout ◽  
Engineering Property ◽  
Reinforcement Effect ◽  
Medium Sand ◽  
Component Particle

To inject in coarse sand strata and medium sand strata with cement grout is difficult in subway engineering. To test the component, particle size and viscosity of THE II sand consolidation agent ,the engineering property is got.To calculate the groutability of the grout material in gravel sand strata, coarse sand strata , medium sand strata and fine sand strata of Shenyang strata,it is feasible to inject the grout material into shenyang sandy strata.Research and engineering indicate that the grout material is high groutable and the reinforcement effect is good.

scholarly journals Impact of compaction test on mineral texture breakage in Tanjung Bunga Beach, Makassar

2018 ◽  
Vol 181 ◽  
pp. 11002
Author(s):  
Hamid Umar ◽  
Dadang A. Suriamihardja ◽  
Lawalenna Samang ◽  
Ulva Ria Irfan
Keyword(s):  
Fine Sand ◽  
Coarse Sand ◽  
Test Laboratory ◽  
Petrographic Analysis ◽  
Infrastructure Development ◽  
Medium Sand ◽  
Compaction Test ◽  
Coastal City ◽  
Beach Sediments ◽  
Opaque Minerals

Rate of mineral deterioration in Tanjung Bunga Beach, Makassar city sediment, as a coastal city area that temporarily evolved with infrastructure development, through a Compaction test has found damage mineral from cracks, split and shatter. The aim of this research is to classify the compaction test from mineral as result texture breakage from compression test. Tanjung Bunga beach sediments based on grain size was classified from fine sand, medium sand and coarse sand. Petrographic analysis of 15 samples of in three drilling sites with 5 meters depth, found quartz mineral composition from 20 – 25%, hornblende bertween 5 – 20%, pyroxene 5 – 15%, pagioclast 5 – 15%, orthoclast 5 – 15%, biotite 10 – 20%, and opaque minerals 10 – 25%. Value of Compaction Test laboratory Fine Sand has 4 - 14.4 Div, Medium Sand has 6.7 - 20 Div, and Coarse Sand has 3.2 - 24 Div. Petrographic analysis after Mineral Compaction Test on fine sand was cracked up to 2 – 20%, split 2 – 12%, and shattered 2 – 10%, medium sand was cracked mineral up to 2 – 15%, split up to 1 – 13%, and shattered up to 1 – 5%, and coarse sand up to 1 – 10% cracked minerals, split up to 2 – 15%, and shattered up to 2 – 7%. High percentage of crack minerals were found in fine sand with low Compaction Test values and coarse sand with low crack mineral and high Compression Strength values. More cracked mineral was found in Quartz and no opaque minerals were shatter. Mineral pyroxene is founded as most shatter shape and orthoclase mineral with the most split shape.

scholarly journals Nitrogen Migration and Transformation Mechanism in the Groundwater Level Fluctuation Zone of Typical Medium

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3626
Author(s):  
Yuepeng Li ◽  
Gang Bai ◽  
Xun Zou ◽  
Jihong Qu ◽  
Liuyue Wang
Keyword(s):  
Water Level ◽  
Groundwater Level ◽  
Fine Sand ◽  
Coarse Sand ◽  
Downward Trend ◽  
Water Level Fluctuations ◽  
Level Fluctuation ◽  
Medium Sand ◽  
N Concentration ◽  
Groundwater Level Fluctuation

Because of the nitrogen pollution problem in groundwater, the migration conversion mechanism of nitrogen in groundwater level fluctuations was analyzed. Technology and methods through indoor experiments and theoretical analysis were used to study coarse sand, medium sand, and fine sand groundwater level fluctuation in the aeration zone and saturated zone under the situation of nitrogen distribution characteristics, revealing groundwater level fluctuation with the nitrogen migration mechanism. The experimental results showed that the variation range of the nitrate-nitrogen (NO3−−N) concentration with the water level is medium sand > fine sand > coarse sand. The ammonium nitrogen (NH4+−N) concentration showed a downward trend after water level fluctuations, and there were more apparent fluctuations in coarse sand and medium sand. The nitrite nitrogen (NO2−−N) in coarse sand and medium sand first increased the water level and then gradually reached a balance. The sampling points below the water level in fine sand showed a downward trend with fluctuation of the water level, and then gradually reached equilibrium. The results provide a scientific basis for the remediation and treatment of soil and groundwater pollution.

scholarly journals DISTRIBUSI SPESIES TERIPANG BERDASARKAN TIPE SUBSTRAT PADA EKOSISTEM PADANG LAMUN DI PERAIRAN NEGERI SULI

2019 ◽  
Vol 15 (2) ◽  
pp. 76-81
Author(s):  
Gratia Dolores Manuputty ◽  
Yunita Noya
Keyword(s):  
Sea Cucumber ◽  
Fine Sand ◽  
Coarse Sand ◽  
Medium Sand ◽  
Sea Cucumbers ◽  
Holothuria Scabra ◽  
Sandy Substrate

This study aims to determine the distribution of sea cucumber based on the characteristics of the substrate in the intertidal waters of Suli. This research was conducted in the waters of Suli in November 2017. Substrate data were analyzed and classified based on Shepards Scale, while the data of sea cucumber were obtained from previous study where samples were analyzed in the laboratory to identify the species based on the shapes of holothurians spicules, microscopically. The data were combined to plot the distribution of sea cucumber based on existing substrate characters. Data were analyzed descriptively. Approximately 14 species identified were scattered on various types of substrate. The substrate were dominated by sandy substrate, varied from medium sand, very coarse sand (dominant), coarse sand, gravel mixed with fine sand, and coral fragments. The result showed that a number of sea cucumbers species were spoted on certain substrates, however, lots of species habitually distributed on each type of substrate. Spesies of Holothuria scabra, H. atra, and Opheodosoma grisea were distributed at majority substrates types. ABSTRAK Penelitian ini bertujuan untuk mengetahui penyebaran teripang berdasarkan karakteristik substrat yang ada di perairan intertidal Suli. Penelitian ini dilakukan di perairan Suli pada bulan November 2017. Data substrat yang diperoleh dianalisa dan diklasifikasikan berdasarkan Skala Shepards. Sedangkan data teripang diperoleh dari penelitian sebelumnya, dimana sampel teripang yang diperoleh kemudian dianalisa pada laboratorium untuk mengidentifikasi spesies yang ditemukan, berdasarkan analisa bentuk spikula secara mikroskopis. Data dipadukan untuk digunakan dalam membuat peta distribusi teripang berdasarkan karakter substrat yang ada. Data dianalisa secara deskriptif. Teridentifikasi 14 spesies teripang pada ekosistem padang lamun perairan Suli yang tersebar pada berbagai jenis substrat. Tipe substrat pada lokasi penelitian didominasi oleh susbtrat berpasir, dengan variasi substrat antara lain: pasir bercampur pasir sedang, pasir bercampur pasir kasar, pasir kasar bercampur pasir, kerikil bercampur pasir halus, dan karang/patahan karang. Dari beberapa variasi ini, tipe substrat yang paling mendominasi adalah pasir kasar bercampur pasir. Hasil penelitian menunjukkan bahwa ada penyebaran beberapa jenis teripang pada substrat tertentu, namun sebagian besar jenis teripang terdistribusi secara merata pada setiap jenis substrat. Jenis teripang Holothuria scabra, H. atra, dan Opheodosoma grisea ditemukan pada hampir semua tipe substrat. Kata Kunci: teripang, substrat, distribusi, ekosistem lamun, Suli

scholarly journals Sediment type and breeding strategy of the Bank Swallow Riparia riparia in western Sweden

Ornis Svecica ◽  
2002 ◽  
Vol 12 (3) ◽  
pp. 157-163
Author(s):  
Bo-Bertil Lind ◽  
Jimmy Stigh ◽  
Lars Larsson
Keyword(s):  
Hydraulic Conductivity ◽  
Bulk Density ◽  
Fine Sand ◽  
Coarse Sand ◽  
Breeding Strategy ◽  
Sediment Type ◽  
Medium Sand ◽  
Riparia Riparia ◽  
Bank Swallow ◽  
Sand Pits

This paper presents an investigation of the sediment used by the Bank Swallow (Sand Martin) Riparia riparia for the construction of breeding tunnels. Grain-size distribution, bulk density and hydraulic conductivity of breeding-tunnel sediment were investigated at four localities in western Sweden. The investigation shows that the Bank Swallow was consistent in using layers composed of a narrow range of fine and medium sand. Ninety percent of the investigated breeding burrows were located in fine to medium sand (0.125–0.5 mm) and 10% in coarse sand (0.5–1.0 mm). No breeding tunnels were found in sediment finer than fine sand or coarser than coarse sand. The fine to medium sand fraction has the properties to hold stable walls and keep dry tunnels even during rainy periods with heavy infiltration. The hydraulic conductivity of the sediment was in the range of 10–4 to 10–3 m/s and the bulk density 1,510–1,575 kg/m3. In Sweden, artificially excavated slopes in gravel and sand pits have long been the dominating breeding locality for the Bank Swallow. However, during the last two decades, four major factors have led to the decrease of breeding localities: (1) a decreasing demand of aggregate resources, (2) landscaping of gravel and sand pits and stabilization of eroding slopes, including river banks and shorelines, (3) a change to quarries as a source for aggregate production, and (4) concentrating gravel and sand exploitation to fewer and larger pits. It is concluded that these factors are important for the decline of the Bank Swallow population in Sweden and possibly elsewhere in Europe and North America.

Research on Sand Gradation to Ultra Strength Grouting Material Properties

2014 ◽  
Vol 507 ◽  
pp. 300-305
Author(s):  
Chang Zheng Sun ◽  
Xiao Ping Zhang ◽  
Hai Nan Zhao ◽  
Qiang Gao
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Material Properties ◽  
Setting Time ◽  
Fine Sand ◽  
Coarse Sand ◽  
Medium Sand ◽  
Final Setting Time ◽  
Grouting Material ◽  
Early Strength

The gradation of coarse sand, medium sand and fine sand on fluidity initial, final setting time, flexural strength, compressive strength, and other properties and structure, of ultra early strength grouting material, was explored. The quartz sand gradation of cement sand ratio 1.0 was systematically studied. The results showed that, the coarse sand, medium sand and fine sand mixed according to the reasonable distribution, when glue sand ratio was 1.0-1.5, ultra-early-strength grouting material, with final setting time for 50-60(min), the initial fluidity greater than 320(mm), 0.5h fluidity greater than 280(mm), 2h compressive strength of 35.6(MPa), 1d flexural strength greater than 13(MPa), 28d compressive strength over 93(MPa), achieved the free vibration.

Sign in / Sign up

Export Citation Format

Share Document