Volcanic Geosites and Their Geoheritage Values Preserved in Monogenetic Neogene Volcanic Field, Bahariya Depression, Western Desert, Egypt: Implication for Climatic Change-Controlling Volcanic Eruption

Concentric Structures and Hydrothermal Venting in the Western Desert, Egypt

“…To the east, El Agoz hill (∼400 m 2 ) forms an isolated exposure ( Figure 3A) separated from El Mandisha by a N30 o Woriented normal fault that cuts through the basaltic flow and the underlying Bahariya Formation (Bh). The basaltic flows consist of vertical and horizontal tier of the rounded columnar joints particularly in the lower part of the basaltic flow (El Qaluabi, 1974;Khalaf et al, 2018). Further to the northeast, El Mayesra basaltic flows occur as an isolated NE-elongated sub-triangular outcrop (∼4 km long and 0.8 km wide, Figure 3A).…”

“…El Marssos hill has a positive and plug-like shape reaching a thickness of more than 170 m above the base of the depression (Figure 3B). The basaltic flow has a distinct columnar structure resting on a ∼2 m thick pyroclastic mound of scoria lapilli, blocks, and bombs with mainly sub-millimeter vesicles exhibiting cauliflower structure ( Figure 3C) (Khalaf et al, 2018). Both pyroclastics (Py) and flow (Bs) are overlying the sandstones and shales of the Bahariya Fm.…”

Propuesta de indicadores ambientales para un turismo sostenible en el desierto de la Tatacoa, Huila, Colombia

“…Este modelo es impulsado por la Unión Europea. Con relación a los indicadores de turismo sostenible en desiertos, se identificaron cinco artículos: dos tratan sobre indicadores sociales, económicos y ambientales aplicados al territorio (Khalaf et al, 2019;Woyo y Amadhila, 2018); uno se aplica a las empresas turísticas (Del Bon et al, 2019); otro a degradación de tierras (Sallam et al, 2018); finalmente, solo uno estudia el uso de indicadores ambientales (Car et al, 2018). Este aspecto evidencia la poca producción científica alrededor de medir el impacto de la actividad turística sostenible en el territorio desértico.…”

Methodological Proposal for the Inventory and Assessment of Geomorphosites: An Integrated Approach focused on Territorial Management and Geoconservation

“…To answer the question on how should geosites be selected for protection, inventories are being carried out in many countries. Most of the initiatives were based in Europe (e.g Wimbledon and Smith-Meyer 2012), but national or regional inventories are now being developed in many other parts of the world, such as Brazil (e.g Santos et al 2016;Garcia et al 2018;Ferreira et al 2019), Ethiopia (e.g Megerssa et al 2019), Morocco (e.g Beraaouz et al 2019), Egypt (e.g Khalaf et al 2019), Mexico (e.g Silva-García et al 2019), Vietnam (e.g Phuong et al 2017) and others.…”