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Islands Geoworld Travel 38https://geoworldtraveldiaries.com/wp-content/uploads/2026/01/canary-islands-geoworld-travel-36-1.jpgCanary Islands Geoworld Travel 36https://geoworldtraveldiaries.com/wp-content/uploads/2026/01/canary-islands-geoworld-travel-39-1.jpgCanary Islands Geoworld Travel 39https://geoworldtraveldiaries.com/wp-content/uploads/2026/01/canary-islands-geoworld-travel-40-1.jpgCanary Islands Geoworld Travel 40https://geoworldtraveldiaries.com/wp-content/uploads/2026/01/canary-islands-geoworld-travel-37-1.jpgCanary Islands Geoworld Travel 37https://geoworldtraveldiaries.com/wp-content/uploads/2026/01/canary-islands-geoworld-travel-35-1.jpgCanary Islands Geoworld Travel 35https://geoworldtraveldiaries.com/wp-content/uploads/2026/01/canary-islands-geoworld-travel-32-2.jpgCanary Islands Geoworld Travel 32https://geoworldtraveldiaries.com/wp-content/uploads/2026/01/canary-islands-geoworld-travel-33-2.jpgCanary Islands Geoworld Travel 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& Wales London to London 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Lavaux Vineyard Terraces UNESCO World Heritage Site on the shore of Lake Geneva.https://geoworldtraveldiaries.com/wp-content/uploads/2022/08/chegwtr22-309.jpgchegwtr22-309Conglomerate of the Molasse Basin in the Lavaux Vineyards World Heritage Sitehttps://geoworldtraveldiaries.com/wp-content/uploads/2022/08/chegwtr22-307.jpgchegwtr22-307The spectacular Morcles nappehttps://geoworldtraveldiaries.com/wp-content/uploads/2022/08/chegwtr22-305.jpgchegwtr22-305The Gorges du Trient, where a subglacial river cut the gorge into metamorphic rocks of the Mont Blanc massif. The gorge was then enlarged by glacial melt.https://geoworldtraveldiaries.com/wp-content/uploads/2022/08/chegwtr22-295.jpgchegwtr22-295The Emosson Damhttps://geoworldtraveldiaries.com/wp-content/uploads/2022/08/chegwtr22-289.jpgchegwtr22-289Our group on a tour inside the Emosson Dam.https://geoworldtraveldiaries.com/wp-content/uploads/2022/08/chegwtr22-286.jpgchegwtr22-286View of Mont Blanc, seen from the Emosson Damhttps://geoworldtraveldiaries.com/wp-content/uploads/2022/08/chegwtr22-284.jpgchegwtr22-284Our group on a tour of the Emosson Dam.https://geoworldtraveldiaries.com/wp-content/uploads/2022/08/chegwtr22-282.jpgchegwtr22-282Our group at the start of the Emosson Dam tour, with the guide talking about Mont Blanc, which is in the background.https://geoworldtraveldiaries.com/wp-content/uploads/2022/08/chegwtr22-280.jpgchegwtr22-280A dinosaur model wearing a cycle helmet with Mont Blanc in the background, at the Emosson Dam. Archosaur tracks (once thought to be dinosaur) have been found nearby and the Tour de France has also visited the 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photo of our group and our drivers in the Atlas Mountains en route back to Marrakech at the end of the tour.https://geoworldtraveldiaries.com/wp-content/uploads/2022/12/morgwtr22-325.jpgmorgwtr22-325The Ait Ben Haddou UNESCO World Heritage Site is an 11th century kasbah built by the family who controlled the camel trains from Marrakech to Timbuktu. This has appeared in many films including Lawrence of Arabia, Jesus of Nazareth, Jewel of the Nile and Gladiator.https://geoworldtraveldiaries.com/wp-content/uploads/2022/12/morgwtr22-321.jpgmorgwtr22-321One of our guests, Brookie, in the Todra Gorge which cuts through Jurassic aged limestone in the Atlas Mountains.https://geoworldtraveldiaries.com/wp-content/uploads/2022/12/morgwtr22-308.jpgmorgwtr22-308Cambrian aged Cambropallas trilobites which had recently been excavated, to the north of the town of Alnif.https://geoworldtraveldiaries.com/wp-content/uploads/2022/12/morgwtr22-302.jpgmorgwtr22-302A Walliserops trifurcatus trilobite in Brahim's shop in Alnif.https://geoworldtraveldiaries.com/wp-content/uploads/2022/12/morgwtr22-287.jpgmorgwtr22-287A Dicranurus monstrosus on display in the Tahiri Museum near Erfoud.https://geoworldtraveldiaries.com/wp-content/uploads/2022/12/morgwtr22-267.jpgmorgwtr22-267Our guests enjoying a tour of an Orthoceras limestone processing factory in Erfoud.https://geoworldtraveldiaries.com/wp-content/uploads/2022/12/morgwtr22-260-1.jpgmorgwtr22-260-1The head of a scyphocrinites crinoid which has been mined from an underground bell pit. The entrance to the pit can be seen with its winding gear in the background.https://geoworldtraveldiaries.com/wp-content/uploads/2022/12/morgwtr22-247-1.jpgmorgwtr22-247-1One of our guests, Andrew, stands on top of a mid-Devonian mud mound at Hamar Laghdad. At this site, there are more than 40 carbonate mounds in a 7km line. These are also known as the Kes Kes, which means 'cooking pots' in the Berber language. Over the years, these have been the source of a huge number of trilobites.2022-12-07T22:01:58+00:00monthlyhttps://geoworldtraveldiaries.com/2022/12/06/germany-2022-a-summary-photo-diary/https://geoworldtraveldiaries.com/wp-content/uploads/2022/12/germany-5-route-map-circular.jpggermany-5-route-map-circularhttps://geoworldtraveldiaries.com/wp-content/uploads/2022/10/gergwtr22-218-1.jpggergwtr22-218-1Roman Mines in the Laacher See Vulcan Geopark. The raised walkway is over the two thousand-year-old Roman tunnels at Meurin. Initially, the Roman tunnels were under a layer of pumice 4m thick which was formed in the later stages of the eruption. The white tuff was mined as a building stone.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/gergwtr22-214-1.jpggergwtr22-214-1Wingertsbergwand, This amazing wall, exposed by quarrying, gives a complete cross section through the pyroclastic flows, surges and pumice fallout of the Laacher See eruption. Most of the material was deposited in a few days with a large amount of this occurring in the first 6 hours.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/gergwtr22-208-1.jpggergwtr22-208-1On a guided tour in the lava cellars that were carved by hand by cutting away basaltic cooling columns in a 200,000-year-old lava flow. The broken columns were then made into mill stones. The cellars started in the Middle Ages and were later used for brewing beer.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/gergwtr22-200-1.jpggergwtr22-200-1The GeoWorld Travel group learning about the Laacher See volcanic eruption, Central Europe’s largest volcanic eruption in recent earth history VEI = 6 (1.5x greater than Pinatubo) The eruption occurred 13,000 years ago and was both hydrovolcanic and magma-emitting, producing a Plinian eruption with a 30km high eruptive column which created pyroclastic density currents (PDCs)https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/gergwtr22-195-1.jpggergwtr22-195-1The GeoWorld Travel group at one of the “Eyes of the Eifel” in the Vulkaneifel Geopark.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/gergwtr22-191-1.jpggergwtr22-191-1Pulvermaar. At 11,000 years old, this is the youngest volcano in Germany and forms a perfect circular crater occupied by a lake. The lake is 900m across and 120m deep.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/gergwtr22-184-1.jpggergwtr22-184-1The accretionary lava ball known as the Strohn Lava Bomb in the Vulkan Eifel UNESCO Geopark. The huge 120-ton ball of lava actually formed by being repeatedly fired away from the eruptive vent, each time rolling back down the inside of the scoria cone receiving a new coating of lava.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/gergwtr22-178-1.jpggergwtr22-178-1Finding our own fossils in the Hunsrück Slate lagerstatten.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/gergwtr22-162-1.jpggergwtr22-162-1A sensational spider fossil from the Hunsrück Slate lagerstatt.2023-04-28T22:38:39+00:00monthlyhttps://geoworldtraveldiaries.com/2022/10/20/italy-2022/https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/italy-route-map.jpgitaly-route-maphttps://geoworldtraveldiaries.com/wp-content/uploads/2022/10/itygwtr22-226.jpgitygwtr22-226Mt Etna a UNESCO World Heritage Site. The highest (3320m) and most voluminous volcano in Europe. August 2021 Etna was declared to have a new summit. After 50 paroxysmal eruptions from the SE crater since 16 Feb 2021, the SE crater grew to be higher than the NE crater. It is now 3357m high.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/itygwtr22-209.jpgitygwtr22-209A large mudpot on Vulcano where it used to be possible to bathe. The bathing is currently restricted due to heighted volcanic activity.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/itygwtr22-206.jpgitygwtr22-206On the summit of La Fossa, there are some impressive steaming fumeroles and solfataras. The visible sulfur is formed by the oxidation of hydrogen sulfide. From 1st October 2021 the temperature and volume of fumarole gases in the La Fossa crater began to increase, and the summit was still closed during our visit. This photograph was taken with a telephoto lens.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/itygwtr22-205.jpgitygwtr22-205The view of Lipari from Vulcanohttps://geoworldtraveldiaries.com/wp-content/uploads/2022/10/itygwtr22-197.jpgitygwtr22-197The La Fossa cone inside the La Fossa Caldera on Vulcano. Even though this is the ‘original’ volcano it is quite unusual, because the volcanic eruptions have been happening in a north-moving trend instead of directly on top of each other. The oldest part of the island is an infilled caldera, Caldera del Piano, it formed 100 ka. It is cut into by the younger Caldera della Fossa (24-15 ka). The caldera sank below the waves when it formed, and subsequent eruptions have carpeted its floor but its still ¼ below the sea. La Fossa cone, the source of eruptions since Classical times, sits inside the caldera. Vulcanello first emerged in 183 BC and was joined to the island of Vulcano in 1530. The island is only 500m high but rises from a 1000m deep seabed. The island was also reputed to be the home of Vulcan, the Roman God of war, fire & metalworking.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/itygwtr22-194.jpgitygwtr22-194Stromboli erupting at nighthttps://geoworldtraveldiaries.com/wp-content/uploads/2022/10/itygwtr22-193.jpgitygwtr22-193Stromboli volcano–the most ‘diligent’ volcano on earth that has probably been continuously erupting for the last 5,000 years. Due to these continuous eruptions, Stromboli is possibly the best place in the world to go to be able to get a chance to see lava. It lends its name to the‘Strombolian’ type eruption, but it is a stratovolcano not the type of volcano typically produced by Strombolian eruptions. However, for the last 2,500-5000 years, Strombolian eruptions have been its most typical eruption.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/itygwtr22-191.jpgitygwtr22-191The active vents are located at the head of Sciara del Fuoco, a horseshoe shaped scarp that formed 5,000 years ago due to a series of slope failures. This scarp that extends below sea level now funnels PDCs and lava flows to the north west.https://geoworldtraveldiaries.com/wp-content/uploads/2022/10/itygwtr22-186.jpgitygwtr22-186Our group climbing to the 400m viewpoint on Stromboli. On July 3rd 2019, a person was killed by an eruption that had an eruptive column 4km high, and on August 28th 2019 a yacht raced away from a pyroclastic flow emitted by another large eruption. Some ash and lapilli went 6km high. 6 x107 kg of bombs were ejected. The July and August 2019 eruptions were the most violent in 100 years and were unexpected.2022-10-20T16:43:13+00:00monthlyhttps://geoworldtraveldiaries.com/2022/09/24/iceland-2022-a-photo-diary/https://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-352.jpgicegwtr22-352A basaltic scoria cone with lava flow spilling out at Grábrók. The volcano erupted in 1750 BCE ± 150 years, and is part of the Ljósufjöll volcanic system at the eastern end of the Snæfellsnes Peninsula.https://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-334.jpgicegwtr22-334The GeoWorld Travel group at Dimmuborgir in front of a lava that exists in a lava column. The site was originally a lava lake through which rootless cone explosions occurred, solidifying the lava around the steam vent in lava columns.https://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-323.jpgicegwtr22-323Lava from the 1724 Mývatn Fires eruptionhttps://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-315.jpgicegwtr22-315A large man-made fumarole that was created by a 1950’s borehole drilled for sulfur exploration.https://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-298.jpgicegwtr22-298Mudpots and fumeroles in the Hverir-Námafjall Geothermal Area.https://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-289.jpgicegwtr22-289Sophie with a large extension fracture in the North American/European plate boundary zone behind her.https://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-283.jpgicegwtr22-283The GeoWorld Travel group at an extension fracture in the North American/European plate boundary zone. Our European guests (with an Australian) are standing on the east side while the American guest are standing on the west.https://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-266.jpgicegwtr22-266Öskjuvatn is the inner & youngest caldera. It is ~5 km wide and 150–200m deep and hosts the Lake Öskjuvatn. The formation of this caldera was initiated by the 29–30 March 1875 rhyolitic Plinian eruption & grew over 40 years to reach its current form.https://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-257.jpgicegwtr22-257The Viti hydromagmatic explosion crater that formed in 1875. In 2021 the whole Askja complex rose 35cm which has increased the acidity in the Viti crater making it unsafe for swimming.https://geoworldtraveldiaries.com/wp-content/uploads/2022/09/icegwtr22-247.jpgicegwtr22-247The GeoWorld Travel group at Askja volcano with the 1961 eruptive vents and lava flows in the background. 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