Characterization of porosity from Cation Exchange Capacity and resistivity data at IODP Expedition 358 Site C0024: insights on compaction state, stress and deformation history at the frontal thrust of the Nankai margin

In subduction zones, megathrust seismicity depends on the hydrogeological, thermal, physical and mechanical properties of the sediments before they enter the subduction zone and how these properties evolve through the subduction process. In particular, fluids are progressively released by compaction and/or mineral dehydration reactions as burial increases, resulting in the build-up of pore fluid pressure in low-permeability sediments that strongly affects fault behavior through its control on effective normal stress.We use porosity, logging and chemical data to characterize compaction state and bound water content of sediments at Site C0024. This site was drilled in March 2019 during International Ocean Discovery Program Expedition 358 in the anticline overlying the frontal thrust of the Nankai margin, a few kilometers landward of Sites C0006 and C0007 that were previously drilled during the NanTroSEIZE project. Sites C0024, C0006 and C0007 transect the d&#233;collement and overlying accreted Upper Shikoku Basin and wedge slope deposits. At Site C0024, the main frontal thrust at ~820 mbsf, the top of its footwall (up to ~870 mbsf) and its hanging-wall were logged. Two intervals were cored in the hanging-wall (~0-320 mbsf and ~510-652 mbsf). Four sedimentary facies were identified : (1) the slope apron (~0-4 mbsf) composed of silty clay to clayey silt hemipelagites, (2) accreted trench wedge sediments (~4&#8211;519 mbsf) composed of hemipelagites with volcanic ash layers, silt and sand turbidites, (3) outer trench-wedge sediments (~519-555 mbsf) mainly composed of hemipelagites with rare silt turbidites and volcanic ash layers and (4) accreted Upper Shikoku Basin (>555mbsf) composed of hemipelagites and volcanic ash layers. The Pliocene to Miocene accreted Upper Shikoku Basin deposits at the frontal thrust are correlated with undeformed Upper Shikoku Basin deposits at reference Sites C0011 and C0012 seaward in the incoming Shikoku Basin.Following previous studies, we use Cation Exchange Capacity (CEC) to determine bound water content and interstitial porosity in the cored interval. Unlike total porosity commonly measured onboard, interstitial porosity is representative of the compaction state of sediments. We use interstitial porosity data to calibrate resistivity-derived porosity through the hanging-wall, the d&#233;collement and below. Resistivity-derived porosity is obtained with a resistivity model accounting for the high surface conductivity of clays based on CEC, exchangeable cation composition, LWD resistivity and gamma ray logs. We also document the evolution of the structure of micro- to macropores with depth using low pressure nitrogen adsorption/desorption, mercury injection capillary pressure and nuclear magnetic resonance. &#160;Finally, we compare the porosity dataset at Site C0024 with that of Sites C0006 and C0007 in the frontal thrust and reference Sites C0011 and C0012 in the entering Shikoku Basin to characterize the evolution of the compaction state of sediments during accretion.

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Quantification of bound water content, interstitial porosity and fracture porosity in the sediments entering the North Sumatra subduction zone from Cation Exchange Capacity and IODP Expedition 362 resistivity data

Marine and Petroleum Geology ◽

10.1016/j.marpetgeo.2019.08.007 ◽

2020 ◽

Vol 111 ◽

pp. 156-165 ◽

Cited By ~ 1

Author(s):

Jade Dutilleul ◽

Sylvain Bourlange ◽

Marianne Conin ◽

Yves Géraud

Keyword(s):

Cation Exchange ◽

Water Content ◽

Subduction Zone ◽

Cation Exchange Capacity ◽

Bound Water ◽

Exchange Capacity ◽

Fracture Porosity ◽

The North ◽

North Sumatra ◽

Bound Water Content

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An In Vitro Evaluation of the Capacity of Local Tanzanian Crude Clay and Ash-Based Materials in Binding Aflatoxins in Solution

Toxins ◽

10.3390/toxins10120510 ◽

2018 ◽

Vol 10 (12) ◽

pp. 510 ◽

Cited By ~ 2

Author(s):

Emmanuel Ayo ◽

Athanasia Matemu ◽

Germana Laswai ◽

Martin Kimanya

Keyword(s):

Cation Exchange ◽

Adsorption Capacity ◽

Cation Exchange Capacity ◽

Volcanic Ash ◽

Rice Husk Ash ◽

Binding Capacity ◽

Exchange Capacity ◽

In Vitro Technique ◽

Great Health

Aflatoxins in feeds cause great health hazards to animals, and thus eventually to humans as well. The potential of clays from Arusha (AC), Kilimanjaro (KC), the Coast (CC), and Morogoro (MC), as well as volcanic ash (VA) and rice husk ash (RA), were evaluated for their capacity to adsorb aflatoxins B1 (AFB1), B2 (AFB2), G1 (AFG1), and G2 (AFG2) relative to a commercial binder Mycobind® (R) using in vitro technique. On average, CC, VA, KC, MC, AC, RA, and R adsorbed 39.9%, 51.3%, 61.5%, 62.0%, 72.6%, 84.7%, and 98.1% of the total aflatoxins from solution, respectively. The capacity of AC and RA was statistically (p < 0.05) better in binding aflatoxins next to R. The adsorption capacity seemed to follow the trend of the cation exchange capacity (CEC) of these materials. The CEC (meq/100 g) of CC, MC, KC, VA, AC, RA, and R were 7.0, 15.4, 18.8, 25.4, 27.2, 27.2, and 38.9, respectively. On average 96.3%, 42.7%, 80.8%, and 32.1% of AFB1, AFB2, AFG1, and AFG2 were adsorbed, respectively. The binding capacity of the clays and ashes relative to Mycobind® was about 100% for AC and RA, 50% for KC, MC, and VA, and 33.3% for CC. The AC and RA seem to be promising resources in binding aflatoxins in solution.

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Application of Nanoparticle of Merapi Volcanic Ash and Phosphate-Solubilizing Fungi in Improving Inceptisols Characteristics

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1044.113 ◽

2021 ◽

Vol 1044 ◽

pp. 113-120

Author(s):

Rina Devnita ◽

Apong Sandrawati ◽

Mahfud Arifin ◽

Pujawati Suryatmana ◽

Muhammad Amir Solihin ◽

...

Keyword(s):

Cation Exchange ◽

Cation Exchange Capacity ◽

Volcanic Ash ◽

Exchange Capacity ◽

Soil Microbiology ◽

Available P ◽

Research Centre ◽

Soil Physics ◽

Weight Percentage ◽

Phosphate Solubilizing

Nanoparticles of Merapi volcanic ash and phosphate-solubilizing fungi were expected to function as ameliorants in improving some Inceptisols characteristics. Nanoparticles of volcanic ash were used in accelerating and streamlining the chemical reaction in the soil. Phosphate-solubilizing fungi were expected to assist the process of several soil reactions. The aim of the research was to improve some chemical characteristics like available P, cation exchange capacity, Fe, and Zn content of Inceptisols in Cilembu Village, Sumedang District, West Java Province, Indonesia. The research used a complete randomized experimental design in factorial with two factors. The first factor was the nanoparticle of Merapi volcanic ash consisted of four doses on soil weight percentage (0%, 2%, 4%, and 6%). The second factor was phosphate-solubilizing fungi consisted of two doses (without and 10 g.kg-1). The volcanic ash was collected from Mt. Merapi, Central Java, after the eruption of November 2010 and kept in the Laboratory of Soil Physics and Conservation in Faculty of Agriculture, Universitas Padjadjaran. The nanoparticle of volcanic ash was processed at Nanotechnology and Graphene Research Centre, Universitas Padjadjaran. The phosphate-solubilizing fungi were isolated from Inceptisols in Soil Microbiology Laboratory, Universitas Padjadjaran. These treatments were combined and mixed with soils and incubated for three months. Every one month during those three months of the incubation period, some soils were taken to be analyzed of available P, cation exchange capacity (CEC), available Fe, and available Zn. The result showed that there was no interaction between the nanoparticle of Merapi volcanic ash and phosphate-solubilizing fungi to parameters investigated except the CEC after two months of incubation. There was an effect of nanoparticle volcanic ash and phosphate-solubilizing fungi individually to available Fe dan Zn. There was a trend of increasing available P, and CEC and decreasing available Fe and Zn by the longer period of incubation.

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Clay mineralogy, cation exchange capacity and specific surface area of loess soils with different volcanic ash contents

Geoderma ◽

10.1016/j.geoderma.2005.12.005 ◽

2006 ◽

Vol 135 ◽

pp. 216-223 ◽

Cited By ~ 52

Author(s):

E.N. Hepper ◽

D.E. Buschiazzo ◽

G.G. Hevia ◽

A. Urioste ◽

L. Antón

Keyword(s):

Specific Surface ◽

Cation Exchange ◽

Surface Area ◽

Specific Surface Area ◽

Cation Exchange Capacity ◽

Volcanic Ash ◽

Clay Mineralogy ◽

Exchange Capacity ◽

Loess Soils

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Effect of Phosphate Adsorption on the Cation-Exchange Capacity of Volcanic Ash Soils

Soil Science Society of America Journal ◽

10.2136/sssaj1974.03615995003800030044x ◽

1974 ◽

Vol 38 (3) ◽

pp. 539-540 ◽

Cited By ~ 18

Author(s):

E. B. Schalscha ◽

P. F. Pratt ◽

D. Soto

Keyword(s):

Cation Exchange ◽

Cation Exchange Capacity ◽

Volcanic Ash ◽

Exchange Capacity ◽

Phosphate Adsorption ◽

Volcanic Ash Soils

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The effect of Sinabung volcanic ash and rock phosphate nanoparticle on CEC (cation exchange capacity) base saturation exchange (K, Na, Ca, Mg) and base saturation at Andisol soils Ciater, West Java

10.1063/1.5021196 ◽

2018 ◽

Author(s):

Anni Yuniarti ◽

Mahfud Arifin ◽

Emma Trinurasi Sofyan ◽

Betty Natalie ◽

Rija Sudirja ◽

...

Keyword(s):

Cation Exchange ◽

Cation Exchange Capacity ◽

Volcanic Ash ◽

Rock Phosphate ◽

Exchange Capacity ◽

Base Saturation ◽

West Java

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Rapid estimation of cation exchange capacity from soil water content

European Journal of Soil Science ◽

10.1111/ejss.12418 ◽

2017 ◽

Vol 68 (3) ◽

pp. 365-373 ◽

Cited By ~ 6

Author(s):

E. Arthur

Keyword(s):

Cation Exchange ◽

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Cation Exchange Capacity ◽

Exchange Capacity ◽

Rapid Estimation

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Physicochemical Changes in Loam Soils Amended with Bamboo Biochar and Their Influence in Tomato Production Yield

Agronomy ◽

10.3390/agronomy11102052 ◽

2021 ◽

Vol 11 (10) ◽

pp. 2052

Author(s):

Karolina Villagra-Mendoza ◽

Federico Masís-Meléndez ◽

Jaime Quesada-Kimsey ◽

Carlos A. García-González ◽

Rainer Horn

Keyword(s):

Cation Exchange ◽

Water Content ◽

Cation Exchange Capacity ◽

Water Retention ◽

Exchange Capacity ◽

Tomato Production ◽

Available Water ◽

Available Water Content ◽

Tomato Yield ◽

Air Capacity

Soil degradation and water stress in Costa Rica challenge the production of highly sensitive crops. This work is aimed at evaluating the physical and chemical changes in sandy loam (SL) and a silt loam (SiL) soil when amended with bamboo biochar while estimating the enhancement of tomato productivity. Biochar, obtained from Guadua Angustifolia bamboo feedstock, was mixed into sieved bulk soil substrate from the topsoil, from Andosol and Umbrisol groups, at application rates of 1, 2.5, and 5% (dry mass). Physicochemical and morphological properties of biochar such as pH, hydrophobicity, scanning electron microscopy images, helium picnometry, specific surface area by the Brunauer–Emmett–Teller (BET) method, CHNS, and ash content were determined. Soil hydrophobicity, acidity, electrical conductivity, cation exchange capacity and water retention, available water content, and air capacity were analyzed for the amended soils. Tomato yield was quantified after a harvest period of two months. The admixture of biochar did not significantly increase soil cation exchange capacity but increased water retention in the range of available water content. Class A (>200 g) tomato yield increased 350% in the SL and 151% in the SiL. Class B (100–200 g) tomato yields increased 27% in the SL but decreased about 30% in the SiL. Tomato yield response seems attributable to variation of water retention capacity, available water content, and air capacity. These results support the use of adapted water management strategies for tomato production based on soil physical changes of biochar.

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Respons Aplikasi Partikel Nano Abu Vulkanik dan Batuan Fosfat terhadap Beberapa Sifat Kimia Tanah Inceptisols Cilembu, Jawa Barat

Jurnal Tanah dan Iklim ◽

10.21082/jti.v44n2.2020.109-116 ◽

2020 ◽

Vol 44 (2) ◽

pp. 109

Author(s):

Pradhinto Dwi Nugroho ◽

Mahfud Arifin ◽

Rina Devnita

Keyword(s):

Cation Exchange ◽

Cation Exchange Capacity ◽

Phosphate Rock ◽

Volcanic Ash ◽

Soil Acidity ◽

Exchange Capacity ◽

Nano Particles ◽

Available P ◽

P Availability ◽

Phosphate Rocks

Abstrak. Kandungan dan ketersediaan unsur P, yang merupakan unsur esensial, rendah pada Inceptisols Cilembu. Unsur P dalam bentuk partikel nano diharapkan dapat mudah diserap oleh tanah. Penelitian ini bertujuan mengetahui pengaruh amelioran partikel nano (abu vulkanik dan batuan fosfat) terhadap P-tersedia dan kemasaman tanah (pH-H2O), serta kapasitas tukar kation (KTK) tanah Inceptisols Cilembu, Sumedang, Jawa Barat. Penelitian dilaksanakan pada bulan Januari sampai dengan Juni 2019 di Laboratorium Fisika Tanah Departemen Ilmu Tanah dan Sumber Daya Lahan, Fakultas Pertanian, Universitas Padjadjaran. Metode penelitian menggunakan Rancangan Acak Lengkap Faktorial. Penelitian dilakukan dengan inkubasi partikel nano abu vulkanik dan batuan fosfat dengan dosis masing-masing 0% (0 g), 2% (20 g per kg tanah), 4% (40 g per kg tanah) dan 6% (60 g per kg tanah). Hasil penelitian menunjukkan tidak terjadi interaksi antara partikel nano abu vulkanik dan batuan fosfat terhadap P-tersedia dan kemasaman tanah (pH-H2O) dan kapasitas tukar kation (KTK). Partikel nano abu vulkanik dan batuan fosfat terlihat nyata berpengaruh terhadap P tersedia setelah inkubasi bulan pertama dan bulan kedua. Penggunaan partikel nano abu vulkanik berpengaruh nyata terhadap meningkatnya pH setelah inkubasi bulan pertama. Interaksi partikel nano abu vulkanik dan partikel nano batuan fosfat tidak berpengaruh nyata terhadap nilai KTK.Abstract. The content and availability of P, which is an essential element in Cilembu Inceptisols. is low. P element in the form of nano particles is expected to increase P availability. The aim of the study was to evaluate the effect of Ameliorant nanoparticles (volcanic ash and phosphate rock) on P availability and soil acidity (pH-H2O) as well as cation exchange capacity (CEC) in Inceptisols Cilembu, Sumedang, West Java. This research conducted in January to June 2019 in the Soil Physics Laboratory of the Department of Land Science and Land Resources, Faculty of Agriculture, Padjadjaran University. The research used Factorial Completely Randomized Design. The study carried out by incubation of volcanic ash nano particles and phosphate rocks with doses of 0% (0 g), 2% (20 g per kilograms of soil), 4% (40 g per kilograms of soil) and 6% (60 g per kilograms of soil). The results showed no interaction between volcanic ash nano particles and phosphate rocks on available P, soil acidity (pH-H2O) and cation exchange capacity (CEC). The effect of nano particles of volcanic ash and phosphate rock was significantly affected by available P after incubation of the first and second months. The use of nano volcanic ash particles has a significant effect on increasing pH after the incubation of the first month. Interaction effect of volcanic ash nano particles and phosphate rock nano particles was not significant on CEC value.

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Habitat of Spathoglottis plicata Bl in Forest of Kampung Woniki East Biak District, Biak Numfor Papua

Beccariana Botanical Research Bulletin ◽

10.30862/bbrp.v7i1.275 ◽

2010 ◽

Vol 7 (1) ◽

Author(s):

Yuliany Senga ◽

C. Y. Hans Arwam ◽

Nurhaida I. Sinaga

Keyword(s):

Light Intensity ◽

Cation Exchange ◽

Carbon Content ◽

Water Content ◽

Air Temperature ◽

Soil Ph ◽

Cation Exchange Capacity ◽

Exchange Capacity ◽

Font Size ◽

Plant Site

The research was aimed to figure out the ecology aspects of terrestrial orcid S. plicata in natural forest around Kampung Wonoki, East Biak. The result showed that S. plicata Grow on latosol soil with is structure very from loamy clay to loamy, colour of soil red to dark brown. Soil water content between 42,9-56,2 %, soil pH 5,0-6,4, Cation Exchange Capacity (CEC) 6,20-20,30 meq/100 gram, Base Saturation 10,0-68,0 %. Carbon content 0,20-0,69 %, Nitrogen 0,02-0,09 %, Phospor 0,3-21,3 ppm, Potasium 0,00-1,17 meq/100 gram, Calsium 0,77-11,78 meq/100 gram, Magnesium 0,15-1,11 meq/100 gram, and Sodium 0,00-0,13 meg/100 gram. Air Temperature Around site of plant site 26,5-42,3 0C, Air Moisture 49,0-82,0 % and Light Intensity 119-1228 lux.

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