Rendiconti Online Societa Geologica Italiana最新文献_第2页

Set up of a monitoring network for the assessment of the effectiveness of innovative mitigation strategies 建立一个监测网络，以评估创新缓解战略的有效性

Rendiconti Online Societa Geologica Italiana Pub Date : 2023-11-01 DOI: 10.3301/rol.2023.45

Filippo Tommaso Catelan, Angelo Ballaera, Giulia Bossi, Gianluca Marcato

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SINACLOUD knowledge platform to provide geographical services for the environment SINACLOUD知识平台为环境提供地理服务

Rendiconti Online Societa Geologica Italiana Pub Date : 2023-11-01 DOI: 10.3301/rol.2023.47

Carlo Cipolloni, Stefano De Corso, Elio Giulianelli, Annalisa Minelli

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Vein intersection zones and host rock composition as controlling factors in polymetallic ore shoots genesis: insights from the Southern Arburèse five-element (Ni-Co-As-Bi-Ag) vein system (SW Sardinia) 脉交带和寄主岩石组成是多金属矿脉成因的控制因素——来自撒丁岛南部arbur<s:1>五元素(Ni-Co-As-Bi-Ag)脉系的启示

Rendiconti Online Societa Geologica Italiana Pub Date : 2023-11-01 DOI: 10.3301/rol.2023.42

Ignazio Scano

{"title":"Vein intersection zones and host rock composition as controlling factors in polymetallic ore shoots genesis: insights from the Southern Arburèse five-element (Ni-Co-As-Bi-Ag) vein system (SW Sardinia)","authors":"Ignazio Scano","doi":"10.3301/rol.2023.42","DOIUrl":"https://doi.org/10.3301/rol.2023.42","url":null,"abstract":"Several studies highlighted the role of chemical controls on the genesis of the five-element (Ni-Co-As-Ag-Bi) deposits, such as host rock composition and intersection between different hydrothermal systems. In the Arburèse district (SW Sardinia), located in the Variscan low-grade metamorphic basement intruded by the Arbus (304 Ma) and Mt. Linas (289 Ma) plutons, the hydrothermal veins follow the contact with the Arbus pluton: in the northern part Pb-Zn ores prevail; conversely, in the southern branch they become five-element veins, showing a pinch and swell structure, breccia/cockades textures with alternating enriched (ore shoots) and low-mineralized zones. The overall mineral assemblages are: 1) native Bi and Ni-Co-Fe arsenides-sulfarsenides + quartz; 2) base-metal sulfides and sulfosalts + siderite; 3) late-stage quartz, followed by pyrite and calcite. New surveys in the area pointed out that important ore shoots occur: 1) where the veins are hosted in Silurian black shales, which can act as redox barrier; 2) at the intersection with earlier hydrothermal systems related to the Monte Linas pluton, where selective remobilization of As and Bi may have taken place. The vein system was explored only in its shallower parts, so it is possible that undiscovered ore shoots may be still present at depth.","PeriodicalId":45380,"journal":{"name":"Rendiconti Online Societa Geologica Italiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135112163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Development of maps for assessment of landslide risk in reservoirs of major Italian dams 绘制意大利主要水坝水库滑坡危险性评估地图

Rendiconti Online Societa Geologica Italiana Pub Date : 2023-11-01 DOI: 10.3301/rol.2023.51

Federico Bonazzi, Fabio Oliva, Massimiliano Carcione

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Soils hydraulic conductivity tests in slopes affected by fire: an example on Pisani Mountains (Tuscany, Italy) 受火影响斜坡的土壤水力导电性试验:以比萨尼山(意大利托斯卡纳)为例

Rendiconti Online Societa Geologica Italiana Pub Date : 2023-11-01 DOI: 10.3301/rol.2023.52

Lorenzo Mori, Matteo Nigro, Ilaria Baneschi, Marco Doveri, Matia Menichini, Roberto Giannecchini

{"title":"Soils hydraulic conductivity tests in slopes affected by fire: an example on Pisani Mountains (Tuscany, Italy)","authors":"Lorenzo Mori, Matteo Nigro, Ilaria Baneschi, Marco Doveri, Matia Menichini, Roberto Giannecchini","doi":"10.3301/rol.2023.52","DOIUrl":"https://doi.org/10.3301/rol.2023.52","url":null,"abstract":"Forest fires are responsible for altering the hydrological dynamics and hydraulic properties of soils, including hydraulic conductivity. This affects several processes, including surface runoff, infiltration into the unsaturated zone, leaching and transport of soil chemical components into groundwater. In August 2021 a forest fire burnt 25 hectares of pine tree forest and olive groves in the southern part of the Pisani Mountains (Tuscany, Italy). The objective of the work is to provide a characterization of in-situ hydraulic conductivity values of the soils of a small catchment intersecting the burnt area.To perform rapid in-situ repeatable soil measurements, four replicas of the Di Prima (2015) automatic single ring infiltrometer were built. These infiltrometers are capable of performing autonomous infiltration test thanks to the automated data acquisition system and their water supply system, reducing disturbances of the tested material.The infiltrometric survey allowed for identification of statistically significant differences in soil hydraulic conductivity between vegetational types, and between burnt and unburnt areas. The soil hydraulic conductivity results lower in the burnt pine tree forest compared with the olive groves. The automatic infiltrometers proved to be a repeatable and rapid soil hydraulic properties survey devices also in a rough mountainous environment.","PeriodicalId":45380,"journal":{"name":"Rendiconti Online Societa Geologica Italiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135117240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Living and building on an active seismic fault: the case of Hierapolis of Phrygia (Turkey) between the late Hellenistic age and the early-Byzantine period 生活和建筑在一个活跃的地震断层上:希腊化时代晚期和早期拜占庭时期之间的弗里吉亚(土耳其)的希拉波利斯的案例

Rendiconti Online Societa Geologica Italiana Pub Date : 2023-11-01 DOI: 10.3301/rol.2023.54

Giuseppe Scardozzi

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Inhomogeneous Beam Brightness Intensity Converter (IBBIC) as support software for cathodoluminescence microscopy studies and images pre-processing 非均匀光束亮度强度转换器(IBBIC)作为阴极发光显微镜研究和图像预处理的支持软件

Rendiconti Online Societa Geologica Italiana Pub Date : 2023-11-01 DOI: 10.3301/rol.2023.43

Francesco Volpintesta, Giovanni Volpintesta

{"title":"Inhomogeneous Beam Brightness Intensity Converter (IBBIC) as support software for cathodoluminescence microscopy studies and images pre-processing","authors":"Francesco Volpintesta, Giovanni Volpintesta","doi":"10.3301/rol.2023.43","DOIUrl":"https://doi.org/10.3301/rol.2023.43","url":null,"abstract":"Cathodoluminescence (CL) has gained over time a growing interest in science and technology. CL microscopy has one of its most common applications in geological research, however, such analysis is affected by brightness values not dependent on the CL response of analysed samples, but on the nature of instrumentation currently adopted.In this work a software has been developed, IBBIC, which is able to convert the brightness intensity of inhomogeneously distributed beams to simulate the response that the investigated materials would have had under the theoretically optimal conditions. Furthermore, it can reduce the contribution of a particular kind of noise, which remarkably manifests values of brightness unrelated to any actual luminescence effect. Moreover, it is equipped with tools capable of supporting the operator in choosing the appropriate parameters for image processing minimizing artefacts, which would otherwise be demanding, laborious and difficult to apply on a large collection of images.To assess the IBBIC software, it was run on 412 images provided by literature and acquired using CL microscopy in widely varying conditions. The results show that it can be applied to microscopy CL studies, as it does not significantly distort the CL response of the analysed samples, but it makes it possible to study correlations between image portions, which are far apart from each other.The software may be extremely helpful in CL studies and other similarly error- prone instruments, as such images pre-processing can pave the way for hitherto challenging and not widespread quantitative/semi-quantitative image analysis.","PeriodicalId":45380,"journal":{"name":"Rendiconti Online Societa Geologica Italiana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135112162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0