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Show Us Geology On Stamps. Geologic Formations, Etc

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Bedrock Of The Community
United States
18460 Posts
Posted 01/04/2022   09:38 am  Show Profile Bookmark this reply Add KuoLC5310 to your friends list  Get a Link to this Reply
Chile 2008 Easter Island
Easter Island is located in the southeastern Pacific Ocean, on the border between the Pacific Plate and the Nazca Plate. It comprises three coalesced extinct volcanoes, one of which, Rano Kau, has a crater lake encircled by steep basalt cliffs.
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Bedrock Of The Community
United States
18460 Posts
Posted 01/04/2022   09:39 am  Show Profile Bookmark this reply Add KuoLC5310 to your friends list  Get a Link to this Reply
Ecuador 2017 Darwin and Wolf Marine Sanctuary
The Galapagos islands and seamounts are created by a mantle plume (hotspot) underneath the Nazca Plate since 20 million years ago. Darwin Island and Darwin Arch are located at the northern end of the archipelago. The 15 meter-high natural lava arch collapsed in 2021.
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Bedrock Of The Community
United States
18460 Posts
Posted 01/07/2022   09:29 am  Show Profile Bookmark this reply Add KuoLC5310 to your friends list  Get a Link to this Reply
Peru 1987 75th Anniversary of the Discovery of Machu Picchu
Machu Picchu (elevation 2430 m) is located in the Cordillera Oriental of southern Peru. It is one of the Permo-Triassic granitoid batholiths which became exposed as a result of Andean convergent deformation during Eocene. The bedrock of the Inca citadel is composed of granite and granodiorite.
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Bedrock Of The Community
United States
18460 Posts
Posted 01/07/2022   11:41 am  Show Profile Bookmark this reply Add KuoLC5310 to your friends list  Get a Link to this Reply
Peru 2009 Cumbemayo Archeological Site
Los Frailones (stone monks) stand above the plains around Cajamarca in northwestern Peru. These massive stone pillars are the erosional remnant of Cretaceous volcanic rock formations.
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Edited by KuoLC5310 - 01/07/2022 11:43 am
Bedrock Of The Community
United States
18460 Posts
Posted 01/08/2022   09:44 am  Show Profile Bookmark this reply Add KuoLC5310 to your friends list  Get a Link to this Reply
Bolivia 2006 International Year of Deserts and Desertification
Tarija Basin in southern Bolivia is filled with Neogene fluvial and lacustrine deposits of the Tolomosa Formation. It exhibits landform of gullies created by erosion of poorly consolidated rocks.
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Bedrock Of The Community
United States
18460 Posts
Posted 01/10/2022   2:22 pm  Show Profile Bookmark this reply Add KuoLC5310 to your friends list  Get a Link to this Reply
Bolivia 2010 Global Warming
Chacaltaya (elevation 5421 m) is located in the Cordillera Oriental, a mountain range within the Central Andean fold and thrust belt. It comprises mainly Paleozoic sedimentary rocks. Its glacier disappeared in 2009 due in part to missing precipitation and the warm phase of El Niņo.
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Bedrock Of The Community
United States
18460 Posts
Posted 01/14/2022   10:50 am  Show Profile Bookmark this reply Add KuoLC5310 to your friends list  Get a Link to this Reply
Argentina 2019 National Parks
Sierra de las Quijadas National Park covers a vast, desert-like area in the San Luis province. It is known for Potrero de la Aguada, a natural amphitheater framed by red sandstone cliffs. The rock formation in this basin comprises mainly of Early Cretaceous aeolian, fluvial, and lacustrine sediments.
El Leoncito National Park is located in the province of San Juan, at the foothills of the Cordillera de la Ramada. The continental crust of this Precordillera terrane broke away from Laurentia and joined Gondwana during Cambrian-Ordovician time.

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Edited by KuoLC5310 - 01/14/2022 12:41 pm
Bedrock Of The Community
United States
18460 Posts
Posted 01/18/2022   12:07 am  Show Profile Bookmark this reply Add KuoLC5310 to your friends list  Get a Link to this Reply
Argentina 2002 Landscapes
Cerro de los Siete Colores is one of the hills bordering the Quebrada de Purmamarca, in Jujuy Province. The rock formations in this hill include phyllite and slate (grey-green), limestone (off-white), sulphur-bearing sandstone (ochre), lead-bearing limestone (purple), iron-rich claystone (orange-red), mudstone (salmon), and manganese-bearing conglomerate (brown).
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Bedrock Of The Community
United States
18460 Posts
Posted Yesterday   10:36 am  Show Profile Bookmark this reply Add KuoLC5310 to your friends list  Get a Link to this Reply
Brazil 2018 Canyons
Fortaleza Canyon and Itaimbezinho Canyon are located inside Serra do Mar, a system of mountain ranges and escarpments in southern Brazil. They feature shear cliffs of Paleozoic-Mesozoic crystalline rocks cut by Rio da Pedra and Rio do Boi, respectively.

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Edited by KuoLC5310 - Yesterday 11:02 am
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