Geoheritage最新文献

Areas after the completion of the opencast exploitation of rock resources, require an appropriate approach in terms of choosing the direction of reclamation, and then development adapted to the proposed way of reclamation. These processes should lead to obtaining such natural and/or utility values so that the areas covered by them could be both socially accessible and have conditions for natural development. This article presents interesting examples that can successfully become good practices related to the reclamation and development of post-mining areas. All the discussed cases indicate an interesting approach of the analyzed areas in terms of the policy of local government authorities, as well as the interests of the local population. Due to perfectly illustrated long-term work of people and the changing methods and equipment over time, these places should also be considered as cultural heritage sites.

Abstract

Geoheritage and geosites have been assessed as part of the work supporting the application of the Oeste Aspiring Geopark, in West Central Portugal, for an UNESCO Global Geopark. The geological framework is presented, describing the regional evolution of the Lusitanian Basin, related to the Mesozoic opening of the North Atlantic, since the Late Triassic until the Late Cretaceous, followed by the Cenozoic inversion of the basin, related to the Alpine orogeny. The overall geodiversity of the territory is described, and the main geological highlights are presented.

Within the scope and objectives of a Geopark, the criteria for the definition of geosites are presented and discussed. Geoconservation, geoeducation and geotourism have been considered to define 80 geosites, with different characteristics, purposes, relevance and potential. Six different encompassing themes have been defined, each one with a specific storytelling. Geoconservation issues are also addressed, showing the importance of protection strategies for the geosites at a local scale.

The literature on geosites inventorying and assessment methods often mentions the issue of objectivity but lacks a detailed discussion of its nature. Indeed, developments in the philosophy and practice of science have shown that objectivity is a complex, multifaceted concept, making its assessment challenging in specific situations. This paper, therefore, draws from this broader debate on objectivity in order to examine and possibly enhance its presence in the aforesaid methods.

Geoparks play a vital role in safeguarding unique landscapes, but the surge in tourist activity in these areas has raised concerns regarding their ecological impact. To address this issue, this study develops the Tourism Environmental Impact Evaluation Framework (TEIEF), a monitoring tool for evaluating the Ecological impact of tourism in geoparks. The Environmental impact of tourism on Danxiashan UNESCO Global Geopark of China (Danxiashan) is analyzed from multi-year data, revealing a significant expansion of tourism environmental impact between 2009 and 2018. To enhance the precision of this analysis, geotagged photo data from social media were incorporated to discern the spatial distribution and intensity of visitor activity. The data resolution was refined from 1 km to 100 m to allow for a more granular assessment of the geographical extent of this impact, providing a detailed and nuanced understanding of the affected area. The findings underscore the importance of long-term monitoring in geoparks to support sustainable environmental planning and landscape conservation. This study pioneers the applications of Volunteered Geographic Information (VGI) data to quantify the magnitude of tourism impact, thereby providing a tool to estimate the environmental consequences of tourism development.

To meet the objectives of the United Nations’ 2030 Agenda and the African Union’s 2063 Agenda for inclusive and sustainable development, it is necessary to pay greater attention to development strategies that focus on geoheritage, particularly in the context of global climate change. Furthermore, the surge in scientific research within this domain attests to a growing interest in the preservation and valorization of geoheritage. The current study seeks to contribute to this dynamic by conducting an evaluation and valorization of the Jbel Irhoud geosite, the cradle of humanity that hosts the oldest remains of homosapiens globally. This site is included in the geoheritage inventory project of Youssoufia province within the administrative region of Marrakech-Safi. This research aims to develop indices for assessing tourism and educational values on scales from 1 to 10, using criteria covering the scientific, ecological, cultural, aesthetic, economic, and potential use aspects of a geosite. Given its geographical position and geological diversity, the study describes the high geoeducational and geotouristic potential of the Ighoud geosite that can be exploited to improve the living conditions of its population and accelerate sustainable local socio-economic development by creating new income-generating activities. This initiative is important in a region with high natural potential but facing a high rate of unemployment and difficult natural conditions.

NEOM in the northwestern part of Saudi Arabia comprises of range of geodiversity like desert, mountain, and coast. This paper is a pioneering approach to document the geoheritage value of key landforms with outstanding scientific, educational, touristic, and additional value. The objective of this study is to prepare an inventory of the key geosites. The methodology involves the identification of geosites and geoheritage assessment and identifies geotourism potential. The study revealed ten key geosites, classified into geomorphological, geological, and geoarchaeological sites. Major key landforms are canyon, yardang, honeycomb structure, columnar basaltic lava, syn- and post-sedimentary deformation, denuded landscape, gullies in evaporite, alluvial fan, dyke swarm, and valley. The tectonic process in different geological phases formed various-scale deformations and fault structures, modified by rainfall and fluvial systems, including various gully and alluvial fans. Further, substantial shifting of the environment from the fluvial to the aeolian environment and weathering along the tectonic structures within a single territory of NEOM represent the geodiversity. Biodiversity and archaeological imprint in the geosites enhanced the additional value of the geosite. The study recommends that these ten sites be conserved and promoted for geotourism through the involvement of academicians, policymakers, and local people.

Adıyaman (SE Türkiye) has a spectacular geological record and high-quality outcrops of petroleum systems. Türkiye is an important resource area for the petroleum industry. The petroleum sector impacts development and provides opportunities for geotourism and geoeducation. Most of these sedimentary and tectonically related geological records form sites relevant to petroleum geology that provide favourable conditions for geoeducational activities with special emphasis on the framework of hydrocarbon exploration models in fieldwork. These georoutes should be popularised for those who work in the petroleum industry, colleagues who are not yet familiar with them and are interested in these concepts, and even for students who are leaning in this direction. This study is about geotourism at sites that are related to the petroleum industry, which could serve as pioneering examples in SE Türkiye and their potential as industrial geotourism resources. In addition, all of these sites are ideal for conducting various geoeducational and geotourism activities for the purposes of geoconservation. Due to the uniqueness of this study, the industrial geoheritage of Adıyaman will become more accessible for scientific research and play an important role in geoeducation and as a potential geotourism resource.

Located along the southern limit of the Algarvensis aspiring UNESCO Global Geopark (aUGGp), the Escarpão Plateau is a singular geomorphological structure sculpted by fluvial, karst, and tectonic processes. The plateau is deeply scarved by the Quarteira Rivulet, forming a valley that crosses the most complete Upper Jurassic sedimentary sequence of the Eastern Algarve (Southern Portugal). This sequence includes five geological formations representing different depths of carbonate ramp deposition from the Tethys Sea: Peral Formation, Jordana Formation, Cerro da Cabeça Formation, Escarpão Formation, and the upper Limestone Formation with Anchispirocyclina lusitanica (foraminifera), respectively from the oldest formation to the most recent at the top. Throughout the Quaternary Period, the karst processes shaped a landscape of sparse and poor soils, based on which successive generations adapted their subsistence agriculture and way of life. The geomorphology of the plateau and the rivulet valley, the sequence of the carbonated formations, and the diversity of sedimentary and paleontological records can be considered possible sites of diverse geological interest and with different scales that are embedded in each other, forming thus nested sites. To promote and preserve these sites, the Algarvensis aUGGp shaped an 8-km-long interpretative walking path, passing through 11 points of interest, including biosites and geosites. Their interpretative boards highlight not only the different spatial and temporal geological diversity but also its relationship with surrounding cultural and historical heritage. Finally, this work allowed the creation of new products for outreach and public awareness towards an effective geoconservation.

The Danxia geoheritage has emerged as a compelling subject of study, while the Tethys-Himalayan tectonic domain continues to captivate scholarly attention. However, a noteworthy gap exists in the literature concerning the intricate relationship between Danxia formation and the evolution of regional tectonics. In this study, we conducted a comprehensive analysis involving structure interpretation and terrain assessment, utilizing Landsat8 imagery and ASTER Global Digital Elevation Model. Additionally, field investigations were carried out on 35 Danxia landforms in the southern Sichuan Basin. Our findings revealed four distinct types of Danxia heritages—cliff (32 sites), peak (7 sites), cave (5 sites), and valley (6 sites)—with a predominant presence on slopes exceeding 40°. Moreover, valley-type sites exhibited a propensity for development at altitudes surpassing 400 m. The observed formations were intricately linked to Late Jurassic to Cretaceous red beds, influenced by the synergistic effects of the southward thrusting of the Qinling Orogen and the northwestward expansion of the Jiangnan Orogen. The control exerted by Cenozoic faults, folds, and joints—resulting from the eastward expansion of the Tibetan Plateau and the southeastward extrusion of the Chuandian terrane—further shaped these Danxia landscapes. Notably, the eastward expansion of the Tibetan Plateau induced the Cenozoic uplift of the southern Sichuan Basin, initiating a rapid denudation process of red beds crucial to the formation of Danxia landforms. Consequently, the Tethys-Himalayan tectonic evolution not only provided the material and structural foundations for these formations but also exerted a profound influence on their development in the southern Sichuan Basin. This study significantly contributes to our enhanced understanding of the spatial distribution of Danxia landforms in China.

Abstract

Geoheritage aims to protect and preserve the geological sites having inimitable geological, scientific, and educational significance. India is bestowed with excellent geological structures, geomorphic features, and rock types varying in age from Archaean to Holocene. Permian Panjal traps (North-west of India) present a first-class hope to understand the multifarious transport of magma from mantle to crust, petrochemical growth of igneous rocks, and the development of ore deposits related to magmatic activity (such as Fe–Ti–V, Cr, Ni-Cu-PGE). These volcanic rocks are important in understanding the evolution of Neotethys ocean. Panjal traps (for being the largest part of the Himalayan Permian magmatic region) would be helpful in understanding the petrogenesis of the Himalayan Permian mafic and silicic magmatic rocks which is debatable at global level. The present study aims to propose the pillow basalts of Panjal traps exposed at Guryul Ravine, Kashmir, as a Geoheritage site. On the bases of length of major axis, studied pillows are grouped into normal class (having < 100-cm length of major axis) and mega class (having > 1 m length of major axis). The formation of undersized pillows having flat surfaces and continuous chilled crusts has been attributed with uniform and restricted stretching of the outer crust. The studied pillows show different shapes like spherical, oval and elongated to irregular and have radial joint patterns which have been filled at later stages by secondary minerals such as calcite and chlorite. Spaces between / among adjacent pillows are occupied by cements of hydrothermal origin and secondary minerals (like chlorite, calcite, and hyaloclastite breccias). The preservation of these pillow basalts of Panjal traps would be highly beneficial to support the evidence of magma eruption under marine environment, magma–water interaction studies, petrological evolution of Panjal traps, and sights related to tectonic setting of the area during the Permo-carboniferous period. Hence, these pillow basalts, in the vicinity of Permian–Triassic boundary section, at Guryul Ravine, form the potential area to be promoted as geo-heritage site.