{"id":2986,"date":"2017-04-28T11:31:35","date_gmt":"2017-04-28T09:31:35","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesm-jmzafra\/?p=2986"},"modified":"2017-04-28T11:31:35","modified_gmt":"2017-04-28T09:31:35","slug":"velates","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/blogs\/museu-de-geologia\/velates\/","title":{"rendered":"VELATES"},"content":{"rendered":"
<\/h6>\n
NOM:<\/b><\/h6>\n

ca:\u00a0velata<\/p>\n

es:\u00a0velata<\/p>\n

en: veile<\/p>\n

DESCRIPCI\u00d3 :<\/b><\/h6>\n

\"copia-de-velata_bona_editada_2nc3-2\"<\/a><\/b>Les velates s\u00f3n mol\u00b7luscos gastr\u00f2podes caracteritzats per no tenir cap ondulaci\u00f3 ni recargolament en la seva clo\u00efssa.<\/p>\n

Es van trobar \u00e9ssers marins en un lloc que actualment \u00a0\u00e9s una ciutat d\u2019interior \u00a0perqu\u00e8 abans tota aquella zona es trobava coberta pel mar. Les velates van viure durant el principi del Eoc\u00e8, fa uns 55 milions d\u2019anys.<\/span><\/p>\n

Els f\u00f2ssils es formen quan les restes animals arriben al fons del mar i amb el temps es cobreixen amb qualsevol tipus de roca en estat de pols (normalment argila o altres roques detr\u00edtiques). M\u00e9s tard aquesta roca es conglomera i les restes de l\u2019animal desapareixen. En tot aquest proc\u00e9s s\u2019ha format un negatiu de les restes.<\/span><\/p>\n

Seguidament la capa que cobreix aquest negatiu es pot fracturar, i llavors, entra aigua amb petites part\u00edcules que amb el temps omplen el negatiu i refan la forma de les antigues restes de l\u2019animal.<\/span><\/p>\n

La seva composici\u00f3 qu\u00edmica no \u00e9s estable, ja que intervenen molt factors com \u00e9s ara el material amb que es crea el negatiu o les part\u00edcules amb que s\u2019omple.<\/p>\n

No destaca per les seves caracter\u00edstiques f\u00edsiques, ja que tan sols \u00e9s una roca composta per elements molt variats.<\/p>\n

Hi ha moltes tipus de f\u00f2ssils. Els m\u00e9s comuns s\u00f3n les restes de cargol o ossos transformats en pedra.<\/p>\n

\u00c8POCA GEOL\u00d2GICA:<\/b><\/h6>\n

Els f\u00f2ssils que tenim nosaltres tenen 55 MA d\u2019antiguitat, es van crear durant el per\u00edode de \u00a0l\u2019Eoc\u00e8.\"mapaeoceno-5\"<\/a><\/p>\n

No es pot donar una data exacta en la que es van formar els f\u00f2ssils ( o qualsevol altre mineral o roca ) ja que la fossilitzaci\u00f3 \u00e9s un proc\u00e9s molt lent que pot tardar milions d\u2019anys. Tot i aix\u00f2, descriurem l\u2019edat en que van viure els \u00e9ssers vius que han arribat a les nostres mans fossilitzats.Es caracteritza per tenir un clima humit i c\u00e0lid. La vegetaci\u00f3, tant marina com terrestre, va augmentar a l\u2019haver-hi un clima humit i pel fet que les altes temperatures escalfessin el mar. L\u2019augment de la vegetaci\u00f3 va produir un augment de tota la succeci\u00f3 de la cadena aliment\u00e0ria i, per tant, un augment de la riquesa biol\u00f2gica.<\/p>\n

Els estrats d\u2019aquesta edat estan for\u00e7a diferenciats dels altres.<\/p>\n

\u00daS:\u00a0<\/b><\/h6>\n

L\u2019\u00fas m\u00e9s com\u00fa que tenen els f\u00f2ssils s\u00f3n els fins cient\u00edfics, amb l\u2019objectiu d\u2019analitzar-los i comprendre i estudiar les esp\u00e8cies extintes a trav\u00e9s d\u2018ells.<\/p>\n

Tamb\u00e9 poden utilitzar-se amb fins est\u00e8tics o de col\u00b7lecci\u00f3.<\/p>\n

\u00a0LLOC D\u2019ORIGEN:<\/b><\/h6>\n

Les Velates provenen de Manresa. Manresa \u00e9s una ciutat i municipi espanyol capital de la comarca del Bages, situat a la prov\u00edncia de \"manresa-8-1\"<\/a>Barcelona, Catalunya.<\/p>\n

Amb una poblaci\u00f3 de 74.655 habitants el 2015, \u00e9s la ciutat m\u00e9s poblada del Bages i de la Catalunya Central. Es troba a 65 km al nord de Barcelona, i marca el l\u00edmit entre l’\u00e0rea industrial al voltant de Barcelona i l’\u00e0rea rural del nord.<\/p>\n

Manresa destaca en la ind\u00fastria t\u00e8xtil, qu\u00edmica i maquin\u00e0ria, si b\u00e9 en les \u00faltimes d\u00e8cades ha substitu\u00eft la ind\u00fastria pel comer\u00e7.<\/p>\n

Degut a la seva dist\u00e0ncia respecte al mar, t\u00e9 unes temperatures extremes ( molt fred a l\u2019hivern i molta calor a l\u2019estiu ) i caloroses, arribant a 43,5 graus a l\u2019agost. La pluja \u00e9s escassa).<\/p>\n

Aix\u00f2 influeix a la vegetaci\u00f3 que a conseq\u00fc\u00e8ncia del clima consta d\u2019arbres que s\u2019han adaptat a suportar llargs per\u00edodes de temps sense pluges.<\/p>\n

PROCED\u00c8NCIA:<\/b><\/h6>\n

Aquesta pe\u00e7a prov\u00e9 de la col\u00b7lecci\u00f3 heretada de la escola Dovella, que les van rebre\u00a0l’escola superior d’agricultura.<\/p>\n

BIBLIOGRAF\u00cdA\/WEBGRAF\u00cdA<\/strong><\/h6>\n

http:\/\/recursos.cnice.mec.es\/biosfera\/alumno\/4ESO\/tierra_cambia\/contenidos4.htm<\/p>\n

Llibre:<\/span>Gorshkov – \u00a0A. Yakushova<\/em>\u00a0Geolog\u00eda General. Londres. 2009<\/span><\/p>\n

Llibre: David R. Rojas<\/em>. Compendio de Geolog\u00eda General.\u00a0Editorial Eduardo de HabichT. Per\u00fa. 2009<\/em><\/span><\/p>\n

Feina feta pels alumnes: Oriol Sala, Jiaojia Du, Cristian Ch\u00e1vez, Aymane El kaissi<\/p>\n

Febrer 2017<\/p>\n","protected":false},"excerpt":{"rendered":"

NOM: ca:\u00a0velata es:\u00a0velata en: veile DESCRIPCI\u00d3 : Les velates s\u00f3n mol\u00b7luscos gastr\u00f2podes caracteritzats per no tenir cap ondulaci\u00f3 ni recargolament en la seva clo\u00efssa. Es van trobar \u00e9ssers marins en un lloc que actualment \u00a0\u00e9s una ciutat d\u2019interior \u00a0perqu\u00e8 abans tota aquella zona es trobava coberta pel mar. Les velates van viure durant el principi […]<\/p>\n","protected":false},"author":115,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[321],"tags":[329,332],"class_list":["post-2986","post","type-post","status-publish","format-standard","hentry","category-museu-de-geologia","tag-2c3","tag-fossils"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/2986","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/users\/115"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/comments?post=2986"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/2986\/revisions"}],"predecessor-version":[{"id":3814,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/2986\/revisions\/3814"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/media?parent=2986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/categories?post=2986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/tags?post=2986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}