Archives

  • Vol. 19 (2021)

    Cover caption: Garnets (grossular-andradite) with calcite and epidote in calcic Skarn. Cala mine (Huelva)

     

    Author: Stefania Schamuells

  • Vol. 18 (2020)

    Cover caption: Subvertical andesite dike with black obsidian chilled margin intruding whitish in situ to clast-rotated hyaloclastite breccia. El Barronal Formation, submarine to emergent Miocene volcanic arc of the Betic-Rif orogen (Cabo de Gata, Almeria).

    Author: Carles Soriano.

  • Vol. 17 (2019)

    Cover caption: Iron oxidation of volcanic sediments from Croscat Volcano in La Garrotxa, Spain.

    Author: Jordi Pedra Méndez.

  • Contributions to the geological evolution of the Iberian Peninsula: a tribute to Pere Santanach
    Vol. 16 No. 4

    Cover caption: DMT image (0.5m) of the La Serrata area (Carboneras fault, Almeria). LIDAR data obtained in the framework of the project SHAKE (CGL2011- 30005-C02-01).

    Autor: R. López Escudero.

  • Vol. 16 No. 3

    Cover caption: Tinto River waters at it source with a pH of 3.5. The pH indicates different magnitudes of metals in solution (Huelva, Spain).

    Author: Stefania Schamuells.

  • Vol. 16 No. 2

    Cover caption: Progressive unconformity of the Puig Cavaller, Catalonia (Spain). Oligocene conglomerates.


    Author: Carolina Seguí.

  • Vol. 16 No. 1

    Cover caption: Sete Cidades caldera general view taken from South view showing the main lake, where other small volcanic calderas are intuited at the West of the largest caldera (left of the picture). Western part of Saõ Miguel island (Azores).


    Author: Paula Senar Manero.

  • Granites and Related Rocks. A tribute to Guillermo Corretgé
    Vol. 15 No. 4

    Cover caption: Intrusive contact of a sillimanite-bearing granite (nebulite) crosscutting a previously deformed porphyritic monzogranite. These relations show a sequence of intrusion, deformation, melting and new intrusion of granitic magmas that illustrate the complex history of formation of the large granite batholiths in the middle of the continental crust. From the Glacial Cirque of Gredos, Avila batholith, Spain.

    Author: Antonio Castro.

  • Vol 15, No 3

    Cover caption: Outcrop of the Ladrilleros-Juanchaco Sedimentary Sequence (LJSS) in the Pacific Coast of Colombia. Sandstone and mudstone intercalated strata gently dipping to the south. The ground is covered by sand due to coastal dynamics. Photograph taken from a topographic high on top of the LJSS looking to the southeast.

    Author: Raúl A. Trejos-Tamayo.

  • Vol. 15 No. 2

    Cover caption: Jurassic lacustrine sediment including coal layers and deformed by the northern Tien-Shan tectonism. Southern shore of Lake Issyk-Kul (Kyrgyzstan). The mining town of Kadji-Sai is in the background. 

    Authors: Angela Landgraf and Daniel Garcia-Castellanos.

    Field guide: Prof. Abdrakhmatov Kanatbek.

  • Vol. 15 No. 1

    Cover caption: Nevado de Colima rises to an altitude of 4260m in the background. Constant degassing coming out from the summit crater of Volcán de Colima, Mexico.

    Author: Josep Cabré-Brullas.

  • Vol. 14 No. 4

    Cover caption: The Mangue de Pedras (B˙zios, RJ, Brazil) is one of the only three known examples of Rock Mangrove in the world. Their peculiarity is the absence of mud and rivers, freshwater flowing to the seashore underground after infiltration in the surrounding relieves. Its fresh to brackish water flora and fauna are characteristics and protected.

    Author: R. Baudino (2014), during the XIV ALAGO (Latin American Association of Organic Geochemistry) conference fieldtrip.

  • Vol. 14 No. 3

    Cover caption: “The garnet” Garnet (grossular-andradite) with epidote. 5 cm. Cala mine (Huelva, Spain).

    Author: Stefania Schamuells Panesso.

  • Vol. 14 No. 2

    Cover caption: Truchas syncline volcanic rocks, Truchillas, León, Spain.

    Author: Javier Fernández Lozano.

  • Vol. 14 No. 1

    Cover caption: Quaternary, oriented shell deposition non consolidated formation, Seltjarnarnes beach, Iceland.

    Author: Emma García Boades.

  • Vol. 13 No. 4

    Cover caption: Devonian sandstones in the Tadrart region, west of Djanet, Sahara.

    Author: T. Ferreiro.

  • Vol. 13 No. 3

    Cover caption: Negro Hill (Livingston Island, Antarctica) is subvolcanic body composed by subalkaline basalts with conspicuous columnar jointing. 

    Author: Claudio A. Parica.

  • Selected contributions from the 7th Iberian Conference on Coastal Geomorphology (JGEOLIT2013), Oviedo (Spain)
    Vol. 13 No. 2

    Cover caption: Mixed beach of gravels and sands of Cobijero (eastern coast of Llanes, Asturias, NW Spain), developed over a calcareous sinkhole, leading into the cliff through a crack (at the end).

    Author: G. Flor.

  • Vol. 13 No. 1

    Cover caption: Piedras Blancas glacier and moraine deposits in the eastern slope of the Fitz Roy (or Chaltèn) massif. El Chaltèn, Patagonia.

    Author: Josep María Casas.

  • ALAGO Special Publication: Selected Contributions from the XIII Congress
    Vol. 12 No. 4

    Cover caption: Exhumed Maastrichtian sandstone reservoir near Loza, Basque- Cantabrian Basin, NE Spain. Hydrocarbons exude and flow during summer when the temperature is relatively high (for scale, the coin is 2cm in diameter).

    Author: A. Permanyer. In the paper by Marín et al. this issue.

  • Vol. 12 No. 3

    Cover caption: Tortonian marine sediments of the Guadix Basin (Dehesas de Guadix, Granada).

    Author: Miguel Garcés.

  • Vol. 12 No. 2

    Cover caption: Devonian sandstones in the Tadrart region, west of Djanet. Sahara.

    Author: T. Ferreiro.

  • Vol. 12 No. 1

    Cover captionKekuphyllum sandoense sp. nv. Offsets in adanced growth stage. 

    Author: J. Fedorowski et al.

  • Vol. 11 No. 4

    Cover caption: Non-marine primary gypsum exposure at the southern bank of the concentration pond 3 of EMISAL Co., Fayioum, Egypt.

    Author: Prof. Mohamed W. Ali-Bik.

  • Vol. 11 No. 3

    Cover caption: Holotype of Schlueterimyia cenomanica, a genus of diptera described in Sarthe amber.

    Author: André Nel (Musem National d’Histoire Naturelle, Paris).

  • Vol. 11 No. 2

    Cover caption: Nummulitic limestone from the Eocene Ainsa Basin (South Central Pyrenees).

    Author: Miguel López-Blanco.

  • Vol. 11 No. 1

    Cover caption: A stack of imbricate thrust sheets with hanging wall anticlines. Aragüés valley, southern Pyrenees, Huesca.

    Author: María Luisa Arboleya.

  • Vol. 10 No. 4

    Cover caption: Western coast of Half Moon Island-South Shtlands-Antarctica. It shows: volcanic necks, the granodiorites and andesites (into the island), and the paleobeaches (4 levels).

    Author: Claudio Parica.

  • Vol. 10 No. 3

    Cover caption: Huge oncoid body in connection with the K/T boundary. Tremp Formation, Àger syncline (South Central Pyrenees).

    Author: Humberto Astibia.

  • Vol. 10 No. 2

    Cover caption: Outcrop photograph illustrating two folded pseudotachylyte veins injected in the contact granite mylonite-gneiss at the Azul megashear zone, Río de la Plata craton, Argentina.

  • Vol. 10 No. 1

    Cover caption: Alephis tigneresi in anatomical connection from the Camp dels Ninots maar site (NE Spain).

    Author: Gerard Campeny (IPHES).

  • Subduction Zones of the Caribbean: The sedimentary, magmatic, metamorphic and ore-deposit records (UNESCO/IUGS IGCP)
    Vol. 9 No. 3-4

    Cover caption: View of the landscape and tropical vegetation of the Purial mountains, eastern Cuba, taken from the La Farola road. The region is made of metamorphosed Cretaceous volcanic arc rocks of the Purial Complex, overridden by the Moa-Baracoa ophiolitic body.

    Author: Antonio García Casco.

  • Any 2011 Vol.: 9 Núm.: 2

    Vol. 9 No. 2

    Cover caption: Mass-transport deposits in the Lower Cretaceous turbidite successions near Matxitxako Cape, Basque Pyrenees, Spain.

    Author: A. Amilibia.

  • Any 2011 Vol.: 9 Núm.: 1

    Vol. 9 No. 1

    Cover caption: Volcanic formations, mainly made of ignimbrites and basalts, in the valley of Uçhisar (Cappadocia, Turkey). The differential erosion of these materials results in the formation of very characteristic landforms, such as these hoodoos or fairy chimneys. 

    Author: Aitor Calvo Martinez de Guereñu.

  • Any 2010 Vol.: 8 Núm.: 4

    The Late Palaeozoic of western Gondwana: new contributions from southern South America
    Vol. 8 No. 4

    Cover caption: Upper Palaeozoic red beds at Cuesta de Miranda, Paganzo Basin, northwestern Argentina.

    Author: Luis Spalletti.

  • Any 2010 Vol.: 8 Núm.: 3

    Vol. 8 No. 3

    Cover caption: Panoramic view of the Aguasalio synclinal (Crémenes, León province, Spain), showing the Devonian - Lower Carboniferous preorogenic succession of the Esla region (Cantabrian Zone).

    Author: Xavier Delclòs.

  • Any 2010 Vol.: 8 Núm.: 2

    Vol. 8 No. 2

    Cover caption: Triglav (Slovenia) observed during descent on August 2006.

    Author: Laura Rincón

  • Any 2010 Vol.: 8 Núm.: 1

    Electromagnetic Induction in the Earth
    Vol. 8 No. 1

    Cover caption: Aurora Borealis observed from Lake Kleifarvatn (Iceland) during a full moon with clear skies. January 2007.

    Author: Georg Vilhjálmsson.

  • Any 2009 Vol.: 7 Núm.: 4

    Vol. 7 No. 4

    Cover caption: Thrust-related folds involving Devonian limestones (white) and Carboniferous limestones (gray, left) in the Correcillas Thrust Sheet. Notice that most folds are detached along the Devonian-Carboniferous contact. Southeastern slope of the Correcillas Peak (Cantabrian Zone, NW Spain).

    Author: Juan Luis Alonso.

  • Any 2009 Vol.: 7 Núm.: 3

    Vol. 7 No. 3

    Cover caption: In the background, purple-blue Lower Cretaceous amber of El Soplao (Cantabria, Spain) and, in the foreground, a small wasp (Insecta: Hymenoptera) found in this amber. Wasp wing length: 3.4 mm.

    Author: X. Delclòs.

    Composition: R. Pérez de la Fuente.

  • Any 2009 Vol.: 7 Núm.: 1-2

    Climate and Biota of the Early Paleogene: Recent advances and new perspectives
    Vol. 7 No. 1-2

    Cover caption: Middle part of the Zumaia section (Guipúzcoa, Basque Country), which contains the Global Stratotype Section and Point for both the Selandian and Thanetian Paleocene Stages.

    Author: J.I. Baceta.

  • Any 2008 Vol.: 6 Núm.: 4

    Vol. 6 No. 4

    Cover caption: Fitz Roy (or Chaltén) peak made up by Miocene granite intruding Cretaceous pelites. Patagonia.

    Author: Jospe María Casas.

  • Any 2008 Vol.: 6 Núm.: 3

    Vol. 6 No. 3

    Cover caption: "The Organ Pipes", post Karro dolerite dykes (Lower Cretaceous), associated with the opening of the South Atlantic. Twylfelfontein - Burnt Mountain, Namibia.

    Author: X. Delclòs.

  • Any 2008 Vol.: 6 Núm.: 2

    Lower Paleozoic Biostratigraphy of South Africa: New contributions and advances
    Vol. 6 No. 2

    Cover caption: Westward view in the foreground of the upper Sierra de la Invernada Formation outcrops (Mid-Late Ordovician; La Invernada Range foothills). In the background El Tigre Range (Western Precordillera, San Juan Province, Argentina) is seen.

    Author: G. L. Albanesi. 

    See Ortega et al. in this issue.

  • Any 2008 Vol.: 6 Núm.: 1

    GEOSUR 2004: Mesozoic to Quarternary evolution of Tierra del Fuego and neighbouring austral regions II
    Vol. 6 No. 1

    Cover caption: Folds related to Late Cretaceous Fuegian Andes compressional events - Bahia Ensenada, West of Ushuaia, Lemaire Formation.

    Author: M. Menichetti.

  • Any 2007 Vol.: 5 Núm.: 4

    GEOSUR 2004: Mesozoic to Quarternary evolution of Tierra del Fuego and neighbouring austral regions I
    Vol. 5 No. 4

    Cover caption: The glacial valley of Laguna Esmeralda with the Albino and Domo Blanco glaciers (Sierra Alvear in Isla Grande de Tierra del Fuego). The Upper Jurassic Lemaire Fm rhyolites in the foreground are thrusted over the Lower Cretaceous Yahgán Fm black mudstones, which crop out in the surrounding peaks (altitude about 1,400 m above sea level).

    Author: M. Menichetti.

  • Any 2007 Vol.: 5 Núm.: 3

    Vol. 5 No. 3

    Cover caption: Devonian sandstones in the Tadrat region, West of Djanet, Sahara.

    Author: T. Ferreiro.

  • Any 2007 Vol.: 5 Núm.: 2

    Vol. 5 No. 2

    Cover caption: Stratification and cleavage in the St. Vito Formation sandstones (Middle Cambrian-Lower Ordovician). Arburese, Sardinia, North-Western Mediterranean.

    Author: Josep Maria Casas.

  • Any 2007 Vol.: 5 Núm.: 1

    Dedicated to Francesc Calvet (II)
    Vol. 5 No. 1

    Cover caption: The Corones Fm (Lower Eocene) outcropping in the Gaudi Artigas Gardens. La Pobla de Lillet, (South-eastern Pyrenees, Catalonia, Spain).

    Author: A. Permanyer.

  • Any 2006 Vol.: 4 Núm.: 4

    Vol. 4 No. 4

    Cover caption: Round notch in a leaf edge produced by leafcutter bees (left), and Agromyzidae (Diptera) mines in a leaf (right). Both are widespread examples of insect-plant interaction.

    Author: X. Delclós.

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