{"id":2812,"date":"2019-09-22T14:50:59","date_gmt":"2019-09-22T13:50:59","guid":{"rendered":"https:\/\/gem.pt\/@teste\/?page_id=2812"},"modified":"2024-09-01T19:01:49","modified_gmt":"2024-09-01T18:01:49","slug":"algares-do-cabeco-dos-alecrineiros-xvii","status":"publish","type":"page","link":"https:\/\/gem.pt\/1\/publicacoes\/carso-e-endocarso\/algares-do-cabeco-dos-alecrineiros-xvii\/","title":{"rendered":"Algares do Cabe\u00e7o dos Alecrineiros &#8211; Parte XVII"},"content":{"rendered":"<figure>\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/Artigo_Alecrineiros17-ori5pzikwf1jomwcpqy53tzecghfyxnw2nshm2i0tc.jpg\" title=\"Artigo_Alecrineiros17\" alt=\"Artigo_Alecrineiros17\" loading=\"lazy\" \/><figcaption>Algares do Cabe\u00e7o dos Alecrineiros - Parte XVII<\/figcaption><\/figure>\n<p>\t\t 22 de Setembro de 2019<\/p>\n<p>Ribeiro, Jos\u00e9\u00a0<sup>1,2<\/sup>; Lopes, Samuel <sup>1,4<\/sup>; Rodrigues, Paulo\u00a0<sup>1,2,3<\/sup><\/p>\n<ol>\n<li style=\"letter-spacing: normal; margin: 10px; padding: 0px; font-family: Questrial; font-size: 13px; white-space: pre-line; line-height: 0.9;\">Grupo de Espeleologia e Montanhismo, Rua Maria Veleda, 6, 7\u00aa Esq, 2650-186, Amadora, Portugal<\/li>\n<li style=\"letter-spacing: normal; margin: 10px; padding: 0px; font-family: Questrial; font-size: 13px; white-space: pre-line; line-height: 0.9;\">N\u00facleo dos Amigos das Lapas Grutas e Algares\u00a0<\/li>\n<li style=\"letter-spacing: normal; margin: 10px; padding: 0px; font-family: Questrial; font-size: 13px; white-space: pre-line; line-height: 0.9;\">Comiss\u00e3o Cient\u00edfica da Federa\u00e7\u00e3o Portuguesa de Espeleologia, Estrada Calhariz de Benfica, 187, \u00a01500-124 Lisboa<\/li>\n<li style=\"letter-spacing: normal; margin: 10px; padding: 0px; font-family: Questrial; font-size: 13px; white-space: pre-line; line-height: 0.9;\">Wind-CAM - Centro de Atividades de Montanha, Rua Eduardo Mondelane, lj44, 2835-116 Baixa da Banheira<\/li>\n<\/ol>\n<hr \/>\n<p>\u00a0<\/p>\n<p>Introdu\u00e7\u00e3o<\/p>\n<p>O prometido \u00e9 devido, mais 3 algares na zona onde os algares s\u00e3o conhecidos como Pena Traseira.\u00a0Nesta publica\u00e7\u00e3o partilhamos os algares Pena Traseira 2, Pena Traseira 3 e Pena Traseira 4. Certamente mais algares aqui v\u00e3o ser encontrados, a seu tempo...\t\t<\/p>\n<figure>\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/imagem_alecrineiros17.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Figura 1 - Localiza\u00e7\u00e3o dos algares, tendo como refer\u00eancia o grande campo de lapi\u00e1s ali existente.\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjgxNywidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMFwvMTJcL2ltYWdlbV9hbGVjcmluZWlyb3MxNy5qcGcifQ%3D%3D\"><br \/>\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" width=\"1080\" height=\"467\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/imagem_alecrineiros17.jpg\" alt=\"\" decoding=\"async\" \/>\t\t\t\t\t\t\t\t<\/a><figcaption>Figura 1 - Localiza\u00e7\u00e3o dos algares, tendo como refer\u00eancia o grande campo de lapi\u00e1s ali existente.<\/figcaption><\/figure>\n<p>\t\tAlgar\u00a0Pena Traseira 2<br \/>\nEste algar tamb\u00e9m \u00e9 bem conhecido e certamente j\u00e1 visitado por muitos espele\u00f3logos. Como se v\u00ea na figura 2, a sua entrada \u00e9 enganadora devido \u00e0 cobertura de vegeta\u00e7\u00e3o, que pode provocar um bom \"tralho\"\u00a0se n\u00e3o se tiver cuidado.<\/p>\n<figure style=\"width: 420px;\"><a href=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Foto-entrada.jpg\"><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Foto-entrada.jpg\" alt=\"\" width=\"720\" height=\"560\" \/><\/a><figcaption style=\"color: #444444; font-family: Questrial; font-size: 14px; background-color: #f0f0f0; padding: 8px;\">Figura 2 - Entrada do Algar Pena Traseira 2<br \/>\n(Foto: S\u00e9rgio Carvalho - GEM)<\/figcaption><\/figure>\n<p>Com a cavidade identificada, fizemos um pouco de pesquisa e percebemos que, inserido num trabalho do grupo de S\u00e3o Bento,\u00a0foi feita uma explora\u00e7\u00e3o e desobstru\u00e7\u00e3o na fenda existente na base do po\u00e7o de 54m. A\u00ed,\u00a0numa pequena passagem horizontal em\u00a0posi\u00e7\u00e3o dif\u00edcil, ter\u00e1 que se fazer uma desobstru\u00e7\u00e3o para se ter acesso a um\u00a0novo po\u00e7o.<br \/>\nO relato do trabalho efetuado\u00a0pode ser encontrado numa publica\u00e7\u00e3o do NALGA de 10-04-2009, onde tamb\u00e9m est\u00e1 dispon\u00edvel um pequeno conjunto de fotografias\u00a0da expedi\u00e7\u00e3o. Participaram Paulo Campos (ARCM), Diana\u00a0 Campos (ARCM), Gon\u00e7alo (ARCM) e Andr\u00e9 (LPN-CEAE).<br \/>\nPara mais informa\u00e7\u00e3o sobre a atividade de 2009 siga esta liga\u00e7\u00e3o:<br \/>\n<u><a style=\"color: inherit;\" title=\"\" href=\"https:\/\/nalga.wordpress.com\/2009\/04\/28\/regresso-a-sbento-alecrineiros-sul-e-pena-traseira-ii-o-gesb-faz-novas-descobertas\/\" target=\"_blank\" rel=\"noopener\" type=\"\" data-attached-link=\"{\">https:\/\/nalga.wordpress.com\/2009\/04\/28\/regresso-a-sbento-alecrineiros-sul-e-pena-traseira-ii-o-gesb-faz-novas-descobertas\/<\/a><\/u><\/p>\n<figure style=\"width: 720px;\"><a href=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Vista-da-zona.jpg\"><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Vista-da-zona.jpg\" alt=\"\" width=\"960\" height=\"540\" \/><\/a><figcaption style=\"color: #444444; font-family: Questrial; font-size: 14px; background-color: #f0f0f0; padding: 8px;\">Figura 3 - Vista do exterior junto \u00e0 entrada do Algar Pena Traseira 2 (Foto: S\u00e9rgio Carvalho - GEM)<\/figcaption><\/figure>\n<p><strong style=\"font-size: 16px;\">\u00a0<\/strong><br \/>\n<strong style=\"font-size: 16px;\">Geologia:<\/strong><br \/>\nA gruta aparenta ter um controlo estrutural sobretudo por uma fam\u00edlia de fraturas de atitude E-W \/subvertical. As camadas regionalmente t\u00eam dire\u00e7\u00e3o aproximada NW-SE e inclina\u00e7\u00e3o suave para Sul. A gruta desenvolve-se em calc\u00e1rios da forma\u00e7\u00e3o de Calc\u00e1rios Biocl\u00e1sticos do Coda\u00e7al, datada do Batoniano, do Jur\u00e1ssico M\u00e9dio.<br \/>\nA gruta aparenta tratar-se\u00a0 de um \u201cvadose shaft\u201d de acordo com a defini\u00e7\u00e3o de Baron, 2003, sendo estas grutas\u00a0com desenvolvimento essencialmente vertical que conduzem a \u00e1gua do epicarso para as zonas mais profundas do carso.<br \/>\n<strong>Presente:<\/strong>Aproveitamos agora para publicar a topografia feita na altura\u00a0pois n\u00e3o h\u00e1 necessidade de se repetir trabalhos, e um dos objetivos deste projeto n\u00e3o \u00e9 \"esburacar\" tudo o que aparece, mas sim partilhar.\t\t<\/p>\n<figure>\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/drive.google.com\/file\/d\/1RtIohIXwzHzWVc7qN5EoEFnJma_jdGAR\/view?usp=sharing\" target=\"_blank\" rel=\"noopener\"><br \/>\n\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/Algar-Pena-Traseira-2-p0mthqhkxow8mz3zbxlmaqdwjmaw0is3lrhyd7siei.jpg\" title=\"Algar Pena Traseira 2\" alt=\"Algar Pena Traseira 2\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t<\/a><figcaption>Figura 4 \u2013 Planta e Corte do Algar Pena Traseira 2, com croqui de equipagem<\/figcaption><\/figure>\n<p>\t\t<strong style=\"font-size: 16px;\">Adverte-se tamb\u00e9m e mais uma vez que para sua prote\u00e7\u00e3o e da pr\u00f3pria cavidade o espele\u00f3logo tem de ter obrigatoriamente forma\u00e7\u00e3o!!!<\/strong>Fotos do Algar Pena Traseira 2\u00a0por\u00a0S\u00e9rgio Carvalho (GEM)<br \/>\n\t\t\t\t\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"88429b5\" data-elementor-lightbox-title=\"Figura 3 - Vista do exterior junto \u00e0 entrada do Algar Pena Traseira 2 \u200b(Foto: S\u00e9rgio Carvalho - GEM)\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjgyMSwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMFwvMTJcL1Zpc3RhLWRhLXpvbmEuanBnIiwic2xpZGVzaG93IjoiODg0MjliNSJ9\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Vista-da-zona.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/Vista-da-zona-p0mtid1kzgbfy9dz6mvv26232v3s45907eek9xzibs.jpg\" alt=\"Figura 3 - Vista do exterior junto \u00e0 entrada do Algar Pena Traseira 2 \u200b(Foto: S\u00e9rgio Carvalho - GEM)\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"88429b5\" data-elementor-lightbox-title=\"Figura 2 - Entrada do Algar Pena Traseira 2 \u200b(Foto: S\u00e9rgio Carvalho - GEM)\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjgyMCwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMFwvMTJcL0ZvdG8tZW50cmFkYS5qcGciLCJzbGlkZXNob3ciOiI4ODQyOWI1In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Foto-entrada.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/Foto-entrada-p0mtic3qsma5mnfcc4h8hoamhh8ewg59v9r2so0wi0.jpg\" alt=\"Figura 2 - Entrada do Algar Pena Traseira 2 \u200b(Foto: S\u00e9rgio Carvalho - GEM)\" \/><\/figure>\n<p><\/a><br \/>\n\t\tAlgar\u00a0Pena Traseira 3<br \/>\nPor ali and\u00e1mos,\u00a0enfiados nas fendas fundas deste campo de lapi\u00e1s, e chamou-nos \u00e0\u00a0aten\u00e7\u00e3o a constru\u00e7\u00e3o de pedra ali colocada. Estava precisamente a tapar a entrada do algar, para prote\u00e7\u00e3o dos animais certamente.<\/p>\n<figure style=\"width: 400px;\"><a href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001023.jpg\"><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001023.jpg\" alt=\"\" height=\"533\" \/><\/a><figcaption style=\"color: #444444; font-family: Questrial; font-size: 14px; background-color: #f0f0f0; padding: 8px;\">Figura 5 - Entrada do Algar Pena Traseira 3, j\u00e1 sem as lajes de pedra a tapar (Foto: S\u00e9rgio Carvalho - GEM)<\/figcaption><\/figure>\n<p><strong>Descri\u00e7\u00e3o:<\/strong>O algar abre-se \u00e0 superf\u00edcie numa fenda no sentido O-E. \u00a0A\u00a0sua entrada tem cerca de 1,5m\u00a0de comprimento e na sua zona mais larga cerca de 0,5m.\u00a0Segue-se um po\u00e7o de 32m, sendo o\u00a0seu inicio sinuoso e com um pequeno patamar, se assim lhe podemos chamar, um pouco mais abaixo.\u00a0Alarga \u00e0\u00a0medida que se desce. Nas paredes v\u00eam-se muitas formas de reconstru\u00e7\u00e3o,\u00a0e aqui e ali grandes blocos entalados.<br \/>\nMais abaixo, sensivelmente a 10m da base, um patamar com formas de reconstru\u00e7\u00e3o e grandes blocos. A base de cascalheira tem inclina\u00e7\u00e3o no sentido O, terminando uns metros mais \u00e0\u00a0frente em argila, onde se nota o acumular de \u00e1gua em tempos mais chuvosos. As paredes aqui s\u00e3o de facto muito bonitas com belos mantos calc\u00edticos.\u00a0At\u00e9 aquele grande bloco que divide um pouco a base tem recantos de muita beleza.<br \/>\n<strong>Geologia:<\/strong>A gruta aparenta ter um controlo estrutural sobretudo por uma fam\u00edlia de fraturas de atitude E-W \/subvertical. As camadas regionalmente t\u00eam dire\u00e7\u00e3o aproximada NW-SE e inclina\u00e7\u00e3o suave para Sul.<br \/>\nA gruta desenvolve-se em calc\u00e1rios da forma\u00e7\u00e3o de Calc\u00e1rios Biocl\u00e1sticos do Coda\u00e7al da Serra de Aire, datada do Batoniano, Jur\u00e1ssico M\u00e9dio.<br \/>\nA gruta aparenta tratar-se\u00a0 de um \u201cvadose shaft\u201d de acordo com a defini\u00e7\u00e3o de Baron, 2003,\u00a0sendo estas grutas\u00a0com desenvolvimento essencialmente vertical que conduzem a \u00e1gua do epicarso para as zonas mais profundas do carso.<br \/>\nPresente:E assim foi, este diferente daqueles que t\u00ednhamos encontrado.\u00a0Ali\u00e1s, todos eles s\u00e3o diferentes e t\u00eam a sua pr\u00f3pria beleza. Este deu-nos muito gosto descer o po\u00e7o em forma de \"garraf\u00e3o\".\u00a0No final volt\u00e1mos a colocar aquelas lajes de pedra que tapam a sua entrada.\t\t<\/p>\n<figure>\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/drive.google.com\/file\/d\/1JnZLUh7QtSnJsq10Kqthv4YPzLml2MZ-\/view?usp=sharing\" target=\"_blank\" rel=\"noopener\"><br \/>\n\t\t\t\t\t\t\t<img loading=\"lazy\" width=\"1754\" height=\"1240\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Algar-Pena-Traseira-3P.jpg\" alt=\"\" decoding=\"async\" \/>\t\t\t\t\t\t\t\t<\/a><figcaption>Figura 6a \u2013 Planta do Algar Pena Traseira 3<\/figcaption><\/figure>\n<figure>\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/drive.google.com\/file\/d\/14suncC9eVUZRbRyKJYomDvb84XJ7BW_J\/view?usp=sharing\" target=\"_blank\" rel=\"noopener\"><br \/>\n\t\t\t\t\t\t\t<img loading=\"lazy\" width=\"1240\" height=\"1754\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Algar-Pena-Traseira-3S.jpg\" alt=\"\" decoding=\"async\" \/>\t\t\t\t\t\t\t\t<\/a><figcaption>Figura 6b \u2013 Perfil desdobrado do Algar Pena Traseira 3<\/figcaption><\/figure>\n<figure>\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/drive.google.com\/file\/d\/1dy0SBksTtPo-WMScw3cqoBINQ6GNytYO\/view?usp=sharing\" target=\"_blank\" rel=\"noopener\"><br \/>\n\t\t\t\t\t\t\t<img loading=\"lazy\" width=\"992\" height=\"1403\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/F.E.Algar-Pena-Traseira-3.jpg\" alt=\"\" decoding=\"async\" \/>\t\t\t\t\t\t\t\t<\/a><figcaption>Figura 6c \u2013 Ficha de Equipagem do Algar Pena Traseira 3<\/figcaption><\/figure>\n<p>\t\tFotos do Algar Pena Traseira 3\u00a0por\u00a0S\u00e9rgio Carvalho (GEM)<br \/>\n\t\t\t\t\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjEyMCwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMDI2NC5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0000264.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0000264-p1eu3jwjzsv1rs9h0he2io4zb3q5bw7wx7h9gdzjwo.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjEyMSwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMDI3NC5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0000274.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0000274-p1eu3ls8dgxmf06qpi7bnnnwhvgvrafdlgs8exwrk8.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjEyMiwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMDI4NC5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0000284.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0000284-p1eu3nnwr5072840ej0ksn6ton7m6omu9q37dhtz7s.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" 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src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0000763-p1eu4vubocoo7wbu8k41ju1hlr5v8gi83sr0xi0h3c.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE0NiwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMDc3Mi5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0000772.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0000772-p1eu4ws5v6pyjiah32io4bsy7518g5lyfxeierz2x4.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE0NywidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMDc5My5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0000793.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0000793-p1eu4zlofottic6dmlqjtt3bzanc38x5gbcyuluweg.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE0OCwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMDg0My5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0000843.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0000843-p1eu50jimiv3ty50h456eauskoipay0vsg0gbvti88.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE0OSwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMDg3Mi5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0000872.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0000872-p1eu51hctcwe5k3nbmjsysm962e2in4m4knxt5s420.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE1MCwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMDg5My5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0000893.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0000893-p1eu53d170yyss0x0nd23s56cu4sy1c2stywrppbpk.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE1MSwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMTAxMi5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001012.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0001012-p1eu54avdv094dzjv5roo9wmy8065qft4yme8znxjc.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2544637\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE1MiwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMTAyMy5qcGciLCJzbGlkZXNob3ciOiIyNTQ0NjM3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001023.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0001023-p1eu566jrj2trlwtk6kxt9fk4zqwl4n9t7xd7jl56w.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><br \/>\n\t\tAlgar\u00a0Pena Traseira 4<\/p>\n<figure style=\"width: 500px;\"><a href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001123.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001123.jpg\" alt=\"\" width=\"2048\" height=\"375\" \/><\/a><figcaption style=\"color: #444444; font-family: Questrial; font-size: 14px; background-color: #f0f0f0; padding: 8px;\">Figura 7 - Entrada do Algar Pena Traseira 4 (Foto: Jorge Faustino - GEM)<\/figcaption><\/figure>\n<p>Este n\u00e3o engana muito...\u00a0vamos l\u00e1 coloc\u00e1-lo no cadastro e topograf\u00e1-lo, se bem que \u00e9 \"apertadinho\" e sem corrente de ar.<br \/>\n<strong style=\"font-size: 16px; letter-spacing: 0px;\">Descri\u00e7\u00e3o:<\/strong><br \/>\nO algar abre-se \u00e0\u00a0superf\u00edcie com boca estreita no sentido NO-SE, com cerca de 0,7m por 0,3m, seguindo-se um po\u00e7o sempre estreito com 6m. No sentido NO abre um pouco, mas nunca alargando. O\u00a0mesmo sucede no sentido SE.<br \/>\nA base com argila tem no sentido NO uma\u00a0abertura para novo po\u00e7o de 2m, ainda mais estreito, de onde se percebe existir poss\u00edvel continua\u00e7\u00e3o identificada na topografia.<br \/>\n<strong>Geologia:<\/strong><br \/>\nA gruta aparenta ter um controlo estrutural por uma fratura de dire\u00e7\u00e3o NW-SE\/subvertical. As camadas regionalmente t\u00eam dire\u00e7\u00e3o aproximada NW-SE e inclina\u00e7\u00e3o suave para Sul. A gruta desenvolve-se em calc\u00e1rios da forma\u00e7\u00e3o de Calc\u00e1rios Biocl\u00e1sticos do Coda\u00e7al, datada do Batoniano, do Jur\u00e1ssico M\u00e9dio.<br \/>\nA gruta \u00e9 basicamente uma fratura alargada, podendo no entanto tratar-se\u00a0de um \u201cvadose shaft\u201d de acordo com a defini\u00e7\u00e3o de Baron, 2003, mas com estrutura muito simples, sendo estas grutas\u00a0com desenvolvimento essencialmente vertical que conduzem a \u00e1gua do epicarso para as zonas mais profundas do carso.<strong>Presente:<\/strong>Este \u00e9 realmente apertado e pequeno.\u00a0Na possivel continua\u00e7\u00e3o n\u00e3o se sente corrente de ar, se bem que por vezes \u00e9 enganador. Percebe-se que a base desse pequeno po\u00e7o avan\u00e7a no sentido NNE, mas muito apertado, tem de ser uma desobstru\u00e7\u00e3o \"herc\u00falea\", e at\u00e9\u00a0l\u00e1 chegar\u2026\t\t<\/p>\n<figure>\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/drive.google.com\/file\/d\/1UK1HM9vbNfBmftoF3tvYQvOwIHL_24jg\/view?usp=sharing\" target=\"_blank\" rel=\"noopener\"><br \/>\n\t\t\t\t\t\t\t<img loading=\"lazy\" width=\"1754\" height=\"1240\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Algar-Pena-Traseira-4P.jpg\" alt=\"\" decoding=\"async\" \/>\t\t\t\t\t\t\t\t<\/a><figcaption>Figura 8a \u2013 Planta do Algar Pena Traseira 4<\/figcaption><\/figure>\n<figure>\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/drive.google.com\/file\/d\/15iMvyeorML6EcHu4F8LjdFpyfWQoPFy_\/view?usp=sharing\" target=\"_blank\" rel=\"noopener\"><br \/>\n\t\t\t\t\t\t\t<img loading=\"lazy\" width=\"1240\" height=\"1754\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/Algar-Pena-Traseira-4S.jpg\" alt=\"\" decoding=\"async\" \/>\t\t\t\t\t\t\t\t<\/a><figcaption>Figura 8b \u2013 Perfil desdobrado do Algar Pena Traseira 4<\/figcaption><\/figure>\n<figure>\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/drive.google.com\/file\/d\/1QSfqDPgWpX47KKOLyi-oHS0vnQQH47bh\/view?usp=sharing\" target=\"_blank\" rel=\"noopener\"><br \/>\n\t\t\t\t\t\t\t<img loading=\"lazy\" width=\"992\" height=\"1403\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/2020\/12\/F.E.Algar-Pena-Traseira-4.jpg\" alt=\"\" decoding=\"async\" \/>\t\t\t\t\t\t\t\t<\/a><figcaption>Figura 8c \u2013 Ficha de Equipagem do Algar Pena Traseira 4<\/figcaption><\/figure>\n<p>\t\tFotos do Algar Pena Traseira 4\u00a0por\u00a0S\u00e9rgio Carvalho (GEM)<br \/>\n\t\t\t\t\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2f5dff7\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE2MCwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMTEyMy5qcGciLCJzbGlkZXNob3ciOiIyZjVkZmY3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001123.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0001123-p1euo2pp7kyf9agb6cqtyhpa7ykndzoxqs8wnvk420.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2f5dff7\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE2MSwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMTI0My5qcGciLCJzbGlkZXNob3ciOiIyZjVkZmY3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001243.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0001243-p1euo3njeezpkwey0v5gizgqtcg0loso2wwe55ipvs.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2f5dff7\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE2MiwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMTI2Mi5qcGciLCJzbGlkZXNob3ciOiIyZjVkZmY3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001262.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0001262-p1euo5j7s32a84c7pvypnyzo046r1304r67d3pfxjc.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2f5dff7\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE2MywidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMTMyMy5qcGciLCJzbGlkZXNob3ciOiIyZjVkZmY3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001323.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0001323-p1euo8cqcl656y849f6ldga1s9suo6bbrk5tjjbr0o.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2f5dff7\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE2NCwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMTM0My5qcGciLCJzbGlkZXNob3ciOiIyZjVkZmY3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001343.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0001343-p1euob68x3a05s40syeh2xkfkfeyb9miry49zd7ki0.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"2f5dff7\" data-elementor-lightbox-title=\"OLYMPUS DIGITAL CAMERA\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NjE2NSwidXJsIjoiaHR0cHM6XC9cL2dlbS5wdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMDFcL09JMDAwMTM2NC5qcGciLCJzbGlkZXNob3ciOiIyZjVkZmY3In0%3D\" href=\"https:\/\/gem.pt\/wp-content\/uploads\/2021\/01\/OI0001364.jpg\"><\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/gem.pt\/wp-content\/uploads\/elementor\/thumbs\/OI0001364-p1euoc433xbahe2nngt3nfbw5tabiyq942rrgn66bs.jpg\" alt=\"OLYMPUS DIGITAL CAMERA\" \/><\/figure>\n<p><\/a><br \/>\n\t\tAssim partilhamos mais um pouco do nosso trabalho. Brevemente publicaremos mais 3 algares\u00a0deste belo campo de lapi\u00e1s\u00a0que \u00e9 a zona dos Pena Traseira.At\u00e9 breve!\u00a0Texto: Jos\u00e9 RibeiroGeologia: Paulo RodriguesEdi\u00e7\u00e3o: Vitor Toucinho<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Algares do Cabe\u00e7o dos Alecrineiros &#8211; Parte XVII 22 de Setembro de 2019 Ribeiro, Jos\u00e9\u00a01,2; Lopes, Samuel 1,4; Rodrigues, Paulo\u00a01,2,3 Grupo de Espeleologia e Montanhismo, Rua Maria Veleda, 6, 7\u00aa Esq, 2650-186, Amadora, Portugal N\u00facleo dos Amigos das Lapas Grutas e Algares\u00a0 Comiss\u00e3o Cient\u00edfica da Federa\u00e7\u00e3o Portuguesa de Espeleologia, Estrada Calhariz de Benfica, 187, \u00a01500-124 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":1574,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2812","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/gem.pt\/1\/wp-json\/wp\/v2\/pages\/2812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gem.pt\/1\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gem.pt\/1\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gem.pt\/1\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/gem.pt\/1\/wp-json\/wp\/v2\/comments?post=2812"}],"version-history":[{"count":0,"href":"https:\/\/gem.pt\/1\/wp-json\/wp\/v2\/pages\/2812\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/gem.pt\/1\/wp-json\/wp\/v2\/pages\/1574"}],"wp:attachment":[{"href":"https:\/\/gem.pt\/1\/wp-json\/wp\/v2\/media?parent=2812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}