array ( 'accessLogFileParseRegex' => '/^(?P\\S+) \\S+ \\S+ \\[(?P.*?)\\] "\\S+ (?P\\S+).*?" (?P\\S+) \\S+ ".*?" "(?P.*?)"/', 'createLogFiles' => true, 'enabled' => true, 'optionalColumns' => array ( 0 => 'city', 1 => 'region', ), ); ?>array ( 'crontab' => array ( 0 => array ( 'className' => 'plugins.generic.usageStats.UsageStatsLoader', 'frequency' => array ( 'hour' => 24, ), 'args' => array ( 0 => 'autoStage', ), ), 1 => array ( 'className' => 'plugins.generic.pln.classes.tasks.Depositor', 'frequency' => array ( 'hour' => '25', ), 'args' => array ( 0 => 'autoStage', ), ), 2 => array ( 'className' => 'plugins.importexport.crossref.CrossrefInfoSender', 'frequency' => array ( 'hour' => 24, ), 'args' => array ( ), ), 3 => array ( 'className' => 'plugins.importexport.crossref.CrossrefInfoSender', 'frequency' => array ( 'hour' => 24, ), 'args' => array ( ), ), 4 => array ( 'className' => 'plugins.importexport.medra.MedraInfoSender', 'frequency' => array ( 'hour' => 24, ), 'args' => array ( ), ), 5 => array ( 'className' => 'plugins.importexport.datacite.DataciteInfoSender', 'frequency' => array ( 'hour' => 24, ), 'args' => array ( ), ), 6 => array ( 'className' => 'classes.tasks.ReviewReminder', 'frequency' => array ( 'hour' => 24, ), 'args' => array ( ), ), 7 => array ( 'className' => 'classes.tasks.SubscriptionExpiryReminder', 'frequency' => array ( 'hour' => 24, ), 'args' => array ( ), ), 8 => array ( 'className' => 'classes.tasks.OpenAccessNotification', 'frequency' => array ( 'hour' => 24, ), 'args' => array ( ), ), ), 'enabled' => true, ); ?>array ( 'ca_ES' => array ( 'key' => 'ca_ES', 'complete' => 'false', 'name' => 'Català', 'iso639-2b' => 'cat', 'iso639-3' => 'cat', ), 'cs_CZ' => array ( 'key' => 'cs_CZ', 'complete' => 'true', 'name' => 'Čeština', 'iso639-2b' => 'cze', 'iso639-3' => 'ces', ), 'da_DK' => array ( 'key' => 'da_DK', 'complete' => 'false', 'name' => 'Dansk', 'iso639-2b' => 'dan', 'iso639-3' => 'dan', ), 'de_DE' => array ( 'key' => 'de_DE', 'complete' => 'true', 'name' => 'Deutsch', 'iso639-2b' => 'ger', 'iso639-3' => 'deu', ), 'el_GR' => array ( 'key' => 'el_GR', 'complete' => 'false', 'name' => 'ελληνικά', 'iso639-2b' => 'gre', 'iso639-3' => 'ell', ), 'en_US' => array ( 'key' => 'en_US', 'complete' => 'true', 'name' => 'English', 'iso639-2b' => 'eng', 'iso639-3' => 'eng', ), 'es_AR' => array ( 'key' => 'es_AR', 'complete' => 'false', 'name' => 'Español (Argentina)', 'iso639-2b' => 'spa', 'iso639-3' => 'spa', ), 'es_ES' => array ( 'key' => 'es_ES', 'complete' => 'true', 'name' => 'Español (España)', 'iso639-2b' => 'spa', 'iso639-3' => 'spa', ), 'eu_ES' => array ( 'key' => 'eu_ES', 'complete' => 'false', 'name' => 'Euskara', 'iso639-2b' => 'eus', 'iso639-3' => 'eus', ), 'fa_IR' => array ( 'key' => 'fa_IR', 'complete' => 'false', 'name' => 'فارسی', 'iso639-2b' => 'per', 'iso639-3' => 'fas', ), 'fr_CA' => array ( 'key' => 'fr_CA', 'complete' => 'true', 'name' => 'Français (Canada)', 'iso639-2b' => 'fre', 'iso639-3' => 'fra', ), 'fr_FR' => array ( 'key' => 'fr_FR', 'complete' => 'true', 'name' => 'Français (France)', 'iso639-2b' => 'fre', 'iso639-3' => 'fra', ), 'gl_ES' => array ( 'key' => 'gl_ES', 'complete' => 'false', 'name' => 'Galego', 'iso639-2b' => 'glg', 'iso639-3' => 'glg', ), 'hr_HR' => array ( 'key' => 'hr_HR', 'complete' => 'false', 'name' => 'Hrvatski', 'iso639-2b' => 'hrv', 'iso639-3' => 'hrv', ), 'id_ID' => array ( 'key' => 'id_ID', 'complete' => 'false', 'name' => 'Bahasa Indonesia', 'iso639-2b' => 'ind', 'iso639-3' => 'ind', ), 'it_IT' => array ( 'key' => 'it_IT', 'complete' => 'false', 'name' => 'Italiano', 'iso639-2b' => 'ita', 'iso639-3' => 'ita', ), 'ja_JP' => array ( 'key' => 'ja_JP', 'complete' => 'false', 'name' => '日本語', 'iso639-2b' => 'jpn', 'iso639-3' => 'jpn', ), 'mk_MK' => array ( 'key' => 'mk_MK', 'complete' => 'false', 'name' => 'Македонски јазик', 'iso639-2b' => 'mac', 'iso639-3' => 'mkd', ), 'ml_IN' => array ( 'key' => 'ml_IN', 'complete' => 'false', 'name' => 'മലയാളം', 'iso639-2b' => 'mal', 'iso639-3' => 'mal', ), 'nl_NL' => array ( 'key' => 'nl_NL', 'complete' => 'true', 'name' => 'Nederlands', 'iso639-2b' => 'dut', 'iso639-3' => 'nld', ), 'no_NO' => array ( 'key' => 'no_NO', 'complete' => 'false', 'name' => 'Norsk', 'iso639-2b' => 'nor', 'iso639-3' => 'nor', ), 'pl_PL' => array ( 'key' => 'pl_PL', 'complete' => 'false', 'name' => 'Język Polski', 'iso639-2b' => 'pol', 'iso639-3' => 'pol', ), 'pt_BR' => array ( 'key' => 'pt_BR', 'complete' => 'true', 'name' => 'Português (Brasil)', 'iso639-2b' => 'por', 'iso639-3' => 'por', ), 'pt_PT' => array ( 'key' => 'pt_PT', 'complete' => 'true', 'name' => 'Português (Portugal)', 'iso639-2b' => 'por', 'iso639-3' => 'por', ), 'ro_RO' => array ( 'key' => 'ro_RO', 'complete' => 'false', 'name' => 'Limba Română', 'iso639-2b' => 'rum', 'iso639-3' => 'ron', ), 'ru_RU' => array ( 'key' => 'ru_RU', 'complete' => 'false', 'name' => 'Русский', 'iso639-2b' => 'rus', 'iso639-3' => 'rus', ), 'sk_SK' => array ( 'key' => 'sk_SK', 'complete' => 'false', 'name' => 'Slovenčina', 'iso639-2b' => 'slk', 'iso639-3' => 'slk', ), 'sr_SR' => array ( 'key' => 'sr_SR', 'complete' => 'false', 'name' => 'Cрпски', 'iso639-2b' => 'srp', 'iso639-3' => 'srp', ), 'sv_SE' => array ( 'key' => 'sv_SE', 'complete' => 'false', 'name' => 'Svenska', 'iso639-2b' => 'swe', 'iso639-3' => 'swe', ), 'tr_TR' => array ( 'key' => 'tr_TR', 'complete' => 'true', 'name' => 'Türkçe', 'iso639-2b' => 'tur', 'iso639-3' => 'tur', ), 'uk_UA' => array ( 'key' => 'uk_UA', 'complete' => 'false', 'name' => 'Українська', 'iso639-2b' => 'ukr', 'iso639-3' => 'ukr', ), 'vi_VN' => array ( 'key' => 'vi_VN', 'complete' => 'false', 'name' => 'Tiếng Việt', 'iso639-2b' => 'vie', 'iso639-3' => 'vie', ), 'zh_CN' => array ( 'key' => 'zh_CN', 'complete' => 'true', 'name' => '简体中文', 'iso639-2b' => 'chi', 'iso639-3' => 'zho', ), 'zh_TW' => array ( 'key' => 'zh_TW', 'complete' => 'false', 'name' => '繁體中文', 'iso639-2b' => 'chi', 'iso639-3' => 'zho', ), 'ar_IQ' => array ( 'key' => 'ar_IQ', 'complete' => 'true', 'name' => 'العربية', 'iso639-2b' => 'ara', 'iso639-3' => 'ara', 'stylesheet' => 'lib/pkp/styles/rtl-arabic.css', ), ); ?> Petrología sedimentaria. Notas de teoría. 10. Las rocas silíceas | Alonso Zarza | REDUCA (Geología)

Petrología sedimentaria. Notas de teoría. 10. Las rocas silíceas

Ana M. Alonso Zarza

Resumen


En este tema se analizan las rocas silíceas sedimentarias no detríticas (también denominadas “rocas de la sílice”), aunque quizás volumétricamente son menos importantes que otros tipos de rocas sedimentarias, algunas de ellas tienen un notable interés económico y además son relativamente frecuentes dentro de nuestro entorno cercano de la Cuenca de Madrid. Se analizará la mineralogía, textura, mecanismos de formación y procesos diagenéticos que sufren las rocas silíceas.

Palabras clave


Rocas silíceas; Cuarzo; Ópalo; Diagénesis;

Texto completo:

PDF