{"id":20065,"date":"2026-04-22T18:33:42","date_gmt":"2026-04-22T18:33:42","guid":{"rendered":"https:\/\/stesa.com\/mapas\/?post_type=ficha&#038;p=20065"},"modified":"2026-04-22T18:33:42","modified_gmt":"2026-04-22T18:33:42","slug":"mapa-geologico-de-la-provincia-de-san-juan-argentina","status":"publish","type":"ficha","link":"https:\/\/stesa.com\/mapas\/doc\/mapa-geologico-de-la-provincia-de-san-juan-argentina\/","title":{"rendered":"Mapa geol\u00f3gico de la provincia de San Juan (Argentina)"},"content":{"rendered":"<p style=\"text-align: center;\"><label style=\"font-size: 15px;\">Mapa geol\u00f3gico de la provincia de San Juan <a href=\"https:\/\/stesa.com\/mapas\/wp-content\/uploads\/20065\/Mapa-geologico-de-la-provincia-de-San-Juan-Argentina.pdf\" target=\"_blank\" rel=\"noopener\">(formato PDF)<\/a>.<\/label><\/p>\n<p><strong>Geolog\u00eda de la provincia de San Juan<\/strong><\/p>\n<p>La provincia de San Juan posee una de las geolog\u00edas m\u00e1s complejas e interesantes de Argentina, debido a la presencia de la cordillera de los Andes, sierras precordilleranas, cuencas sedimentarias y una intensa actividad tect\u00f3nica.<\/p>\n<p><strong>Rasgos geol\u00f3gicos principales<\/strong><\/p>\n<p><strong>1. Cordillera de los Andes<\/strong><\/p>\n<p>En el oeste provincial se alza la Cordillera Principal, formada por el levantamiento tect\u00f3nico asociado a la subducci\u00f3n de la placa de Nazca bajo la placa Sudamericana. Predominan rocas volc\u00e1nicas, sedimentarias y metam\u00f3rficas. Aqu\u00ed se encuentran altas cumbres y glaciares de monta\u00f1a.<\/p>\n<p><strong>2. Precordillera<\/strong><\/p>\n<p>Al este de la cordillera aparece la Precordillera de San Juan, compuesta principalmente por rocas sedimentarias marinas del Paleozoico (calizas, dolom\u00edas y lutitas). Esta zona es muy importante para estudios paleontol\u00f3gicos y estratigr\u00e1ficos.<\/p>\n<p><strong>3. Sierras Pampeanas occidentales<\/strong><\/p>\n<p>En sectores orientales afloran bloques antiguos cristalinos, integrados por granitos, gneises y otras rocas metam\u00f3rficas de gran antig\u00fcedad.<\/p>\n<p><strong>4. Cuencas y valles sedimentarios<\/strong><\/p>\n<p>Los valles de Tulum, Ullum, Zonda y J\u00e1chal est\u00e1n rellenos por sedimentos recientes transportados por r\u00edos y abanicos aluviales. En estas \u00e1reas se desarrollan los principales oasis agr\u00edcolas.<\/p>\n<p><strong>Actividad s\u00edsmica<\/strong><\/p>\n<p>San Juan es una de las regiones con mayor riesgo s\u00edsmico del pa\u00eds. Los terremotos se originan por fallas activas vinculadas a la compresi\u00f3n andina. El m\u00e1s recordado fue el terremoto de San Juan de 1944, que caus\u00f3 grandes da\u00f1os en la capital provincial.<\/p>\n<p><strong>Recursos minerales<\/strong><\/p>\n<p>La geolog\u00eda sanjuanina favorece la existencia de importantes recursos mineros:<\/p>\n<ul>\n<li>Oro<\/li>\n<li>Plata<\/li>\n<li>Cobre<\/li>\n<li>Calizas<\/li>\n<li>Yeso<\/li>\n<li>Bentonita y otras rocas industriales<\/li>\n<\/ul>\n<p><strong>Importancia cient\u00edfica<\/strong><\/p>\n<p>San Juan es un \u00e1rea clave para investigar la evoluci\u00f3n de los Andes, la tect\u00f3nica de placas, los f\u00f3siles paleozoicos y los procesos s\u00edsmicos en Sudam\u00e9rica.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La provincia de San Juan posee una de las geolog\u00edas m\u00e1s complejas e interesantes de Argentina, debido a la presencia de la cordillera de los Andes, sierras &#8230;<\/p>\n","protected":false},"author":1,"featured_media":20066,"template":"","categoria_ficha":[2198],"class_list":["post-20065","ficha","type-ficha","status-publish","has-post-thumbnail","hentry","categoria_ficha-mapas-de-la-provincia-de-san-juan-argentina"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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