May 2022

Microfolds in Serrat del Maneló (Manresa)

The folds of the strata –anticlines and synclines with all variations and combinations you may think- change enormously in scale, from folds of kilometric length whose interpretation is often difficult in the overgrown or overly artificialized landscape, to microfolds of metric or centimetric size that can be seen closely in full. Sometimes, not always, the … Read more

Forest of Xamal (Fonollosa, Bages), 30.04.2022

The group of ICHN-Bages looking at the stratification of the forest and to the succession from pines to oaks in the forest of Xamal (Fonollosa, Bages), on 30.04.2022. [photo Jordi Badia]

March 2022

Operculina

Operculina sp.

Foraminifera

Operculina sp. is a genus of Foraminifera protozoa of the Nummulitidae family that also contains the well-known, often very common and visible in the nummulitic limestones of the Eocene in Central Catalonia, Nummulites. Operculina is also found in large number as fossil into nummulitic limestones; therefore, some of them should better be known as operculinic … Read more

Belvedere of Talló, in Castellgalí (Bages), 26.03.2022

The group of ICHN-Bages in the belvedere of Talló for a free of noises view of the so beautiful saw profile of the north face of Montserrat during the walk around Talló (Castellgalí, Bages), on 26.03.2022. [photos Montserrat Porta (1st), Jordi Badia (2nd) and Encarna Montes (3rd)] Further information in Notícies de la ICHN nr.161.

Field of Lledoners (Sant Joan de Vilatorrada), 13.03.2022

A part of the numerous participants in the protest walking against the reclassification to industrial of the Camp de Lledoners, in the plain of Les Torres de Bages, after the call of the environmental associations Meandre and Volunteers of Sant Joan de Vilatorrada, on Sunday 13.03.2022.In the 1st photo, part of the walkers going through … Read more

February 2022

The cluster of maritime pines in El Rauric (Rajadell), in 26.02.2022

The ICHN-Bages group in the cluster of maritime pines in El Rauric (Rajadell) in the outing of 26.02.22 to the valley of Servitge, the source of El Rauric and the summit of La Melera.In the 2nd picture, looking for the large cones of the maritime pine. [photos Jordi Badia (1st) and Elena Sicto (2nd)]

Natural pavements of lacustrine limestone

The lacustrine limestones occur in extensive layers of light-coloured hard rock into the geological formation Artés that is mostly made of reddish, easier to wash out shales and sandstones. If the terrain and the strata share the same slope and the top layer is a lacustrine limestone, the roof of this hard stratum may turn … Read more

January 2022

Natural floors of sandstone

Paths and trails, if lucky enough, may have stretches with a natural stone pavement as beautiful as practical. In the district of Bages, this happens often in the southeast area because their flat sandstone that laid down in a calm marine environment of a coastal platform. The natural stone floor corresponds to the roof of … Read more

Shelter of Sastricó

The range of Obac, mainly in the municipality of Mura, has many shelters (in Catalan, balmes). The best known are those that are occupied by the most elaborate constructions, specifically the Puig de la Balma that shelters a large medieval house and the Balmes Roges that covers a set of vats of wine; but there … Read more

Parallel cracks in the limestone layer below El Pont Vell

The Pont Vell (= Old Bridge) on the Cardener river, in Manresa, was built above a resistant layer of nummulitic limestone rock. This layer of limestone slightly tilts to the north according to the general slope of the strata, therefore, it outcrops to a wider extent on the southern shore, that of La Guia. The … Read more

December 2021

Gypsum in the Guix fault, in Sallent

The name of the anticline-fault of El Guix (gypsum, in Catalan), in the south of Sallent, refers to the layers of gypsum that outcrop in the raised north block, near the axis of this tectonic structure. The pictures are taken from the cliff that the railway digs at the foot of the Cogulló mountain, which … Read more

Fault of El Guix (Sallent)

The Guix fault is a large tectonic accident that runs in a straight line of about 10 km from southwest to northeast, from the north of Santpedor to Horta de Avinyó, crossing the Llobregat river and the southern slopes of the Montcogul mountain range. It has its center, its maximum development and its greatest complexity … Read more

October 2021

September 2021

Potholes

The naked hard rock surface of the river shores may have round holes of about a hand in diameter and slightly less in depth, from natural origin, which are known as potholes. The potholes can keep water from the rain or from the last flood of the river or stream. Potholes are mainly found in … Read more

Round shaped layer of sandstone

A well-defined layer of about 70 cm thick stands out by its rounded instead of laminar inner shapes in the sandstone that outcrops at the foot of the ridge of Roca Tinyosa (Manresa), a few meters past La Gola del Bigaire by the shore of river Llobregat. This is really unusual because sediments deposit in … Read more

July 2021

Halite speleothems

In the gallery of the Cardona potash mine that is named La Minilla and that can be visited through the service of the Salt Mountain Cultural Park, there are a lot of speleothems of the mineral halite, as in the natural caves of Forat Micó and Meanders of Salt, all of them inside the Mountain … Read more

The Old Bridge of El Pont de Vilomara, 04.07.2021

Part of the ICHN-Bages group on the Old Bridge of El Pont de Vilomara (Manresa) -the bridge of gothic style used by the Royal Path from Manresa to Barcelona to cross the river Llobregat- in the outing of 04.07.21 to the valley of Llobregat from La Salut de Viladordis looking at the two species of … Read more

The arch of Les Arnaules, 04.07.2021

Part of the ICHN-Bages group on the natural bridge or arch of Les Arnaules (Manresa), in the outing to the valley of Llobregat through La Salut of Viladordis, the summit of punta Sabata, the bridge of Les Arnaules, El Pont de Vilomara, can Roviralta, els Tres Salts, la Gola del Bigaire and La Salut de … Read more

June 2021

Cannonballs in sandstone

Sometimes, the sandstones from the Eocene marine in the district of Bages contain balls in the range of 2-15 cm diameter, from the same rock nature. In Geology, they are known as cannonballs. The outcrop of the sandstone can show them either in positive or convex relief in the so-called noisette shape, or in negative … Read more

April 2021

Stratification of Montserrat

The Montserrat massif is made of conglomerate with calcareous cement deep strata that are separated by more clayey strips. From this lithological composition results a geomorphology of stepped pyramid like that of the temples of the Central American Mayan culture. The total height of the conglomerates is about 1000 meters, from Monistrol to the summit … Read more

Big Shelter of Marganell

La Bauma Gran de Marganell (= the Big Shelter of Marganell) can be found in the left slope of the stream of Marganell, in the path of Guimberes that initiates in the cross between the roads to Marganell and to Sant Cristòfol. The Big Shelter is on upper part of the stream of Guimberes, in … Read more

December 2020

Smelly lepiota

Lepiota cristata

Agaricales » Agaricaceae

The smelly lepiota (Lepiota cristata) is a small, white mushroom with arranged concentrically, denser in the center than on the margin reddish-brown or mahogany scales on the cap. It looks like many species of the genus Lepiota and it is surely one of the most abundant in the district of Bages. First the cap is conical shape … Read more

November 2020

Nummulites striatus

Nummulites striatus

Foraminifera

Gravel deposit made up of Nummulites striatus fossils from Maians (Castellfollit del Boix) in 1st image, from Colonia Jorba (Calders) in the 2nd image and from Les Marcetes (Manresa) in the 3rd. The biggest pieces measure 25 mm diameter, most of them round 10 mm. The Nummulites are the most characteristic fossils in the Eocene … Read more

October 2020

Caliche

The caliche –from its Spanish name, sometimes also named calcrete- is a hard, compact and extensive crust that is found in depth in the soil due to calcareous cementation. It is light marbled colour and it includes, in variable proportions and sizes depending on the areas, particles of clay, silt, sand and gravel already existing … Read more

Fossils

Fossils are material proofs of living organisms in the geological past. They are usually found into sedimentary rocks. They allow to know the age of these rocks and the environmental characteristics of the area when these organisms were alive. The source of the most common and known fossils in Bages is the sea. They come … Read more

Nummulitic limestone

The nummulitic limestones are made of cemented skeletons or shells of nummulites. Both, the nummulites and the cement are calcareous nature. Nummulitic limestones are characteristic from the Eocene epoch, in the Tertiary period. The nummulitic limestones deserve one close look. The lentil shaped fossils of nummulites are seen. The diametrally cut nummulites display their beautiful … Read more

Pool of La Llosa, stream of Guardiola

El gorg de la Llosa (= the pool of the Paving Stone) is located in the stream of Guardiola where it makes the boundary between the municipalities of Sant Salvador de Guardiola to the south and Manresa to the north, before the pool of L’Oller. The itinerary M-3 of the Green Belt of Manresa drives … Read more

Geological itineraries

Link to the digital format of the book Geological itineraries – Bages, Berguedà, Anoia, Solsonès that was published in 1981 by Centre d’Estudis Geològics Valentí Masachs. Valentí Masachs was the director and co-autor of this work that collects contributions from Antonio Gómez, Josep M. Mata, Francesc Porta, Antonio Ramírez and Mn Lluís Via. The book … Read more

Geological history

The study of the rocks that emerge to the surface of Bages district reveals their conditions and dates of origin. In geological views, the rocks in Bages are not too ancient. Most of them belong to the Tertiary period and some to the Quaternary. At the beginning of the sedimentation process that led to the … Read more

Rocks and minerals

INTRODUCTION Geografically, the district of Bages belongs to the Central Catalonian depression which is the eastern sector of the basin of the river Ebre. This low lands region borders on the mountain range of Pyrenees by the north, on the Catalonian Coastal range by the east and on the Iberian range by the south-west. During … Read more

Geomorphology

INTRODUCTION Geografically, the district of Bages belongs to the Central Catalonian depression which is the eastern sector of the basin of the river Ebre. This low lands region borders on the mountain range of Pyrenees by the north, on the Catalonian Coastal range by the east and on the Iberian range by the south-west. During … Read more

September 2020

Roca Foradada and Cadireta d’Agulles in Montserrat

The massif of Montserrat spreads from east to west like a range. Its large, typical views are seen from the north -the district of Bages– or from the south -the districts of Baix Llobregat and partially Anoia. Opposite to this, Montserrat displays a compact look from east or west. However, the outline of La Cadireta … Read more

August 2020

Shelter of Balmes Roges (El Pont de Vilomara i Rocafort)

The Red Shelter (Les Balmes Roges) is located in the south slope of Puig Gili, in the municipality of El Pont de Vilomara i Rocafort.Like other natural shelters in the area of Rocafort, Mura and Rellinars, one thick layer of consistent conglomerate rock makes the roof and one prompt to disaggregate layer of sandstone makes … Read more

Coroebus undatus

Coroebus (= Coraebus) undatus

Coleoptera » Buprestidae

The flathead oak borer (Coroebus undatus [= Coraebus undatus]) is a beetle of the Buprestidae family that, in the larva stage, lives under the bark of the cork oak, in the germ layer called cambium that produces wood towards the interior and bark –in this case cork- outwards.In its larval stage, the flathead oak borer … Read more

Killer fly

Laphria marginata

Brachycera » Asilidae

The killer fly (Laphria marginata) is a big, black colored, hairy horsefly. The trump, the appearance, its noisy buzzing and even its name are all really frightening. However, do not panic. It doesn’t feed mammal blood, it hunts over other flying insects instead. Once the innocent insect is kept, then the killer fly sucks its … Read more

Panther cap

Amanita pantherina

Agaricales » Amanitaceae

The panther cap (Amanita pantherina) is a graceful, slim mushroom with a shiny brown cap showing white spots that looks unmistakably as one species of the genus Amanita. It’s also one of the most poisonous. It grows from one egg or total veil that remains wrinkled and powdery at the stipe bottom, but several regular, … Read more

July 2020

Mountain of salt of Cardona

Mountain of salt of Cardona. In 1st, 2nd and 3rd pictures, the main view of the salt mountain; in the 4th picture, the folding of the plastic behaviour materials in the mountain of salt of Cardona. The evaporites of the Mountain of Salt of Cardona raised to the surface in one structure called diapir that … Read more

Gipsy moth

Lymantria dispar

Lepidoptera » Lymantriidae

The hairy worm of the evergreen oak is in fact the caterpillar of the gipsy moth (Lymantria dispar). These caterpillars live all together in nests made of holm oak leaves which are sticked by fine, silky filaments. The caterpillars eat mainly holm oak and cork oak leaves, but also can feed on leaves of fruity … Read more

Footbridge of can Poc Oli, Manresa 05.07.2020

Rejoined in Sunday 05.07.2020 after the confinement due to the coronavirus pandemic, the group of ICHN-Bages crosses the river Cardener on the footbridge of can Poc Oli, back from one walk through the Anella Verda (= green ring) of Manresa.The circular route was as follows: Pont Vell (= old bridge) of Manresa – Santa Caterina … Read more

Itinerary of the sundeck of Els Comtals, Manresa (Bages) 05.07.2020

Rejoined in Sunday 05.07.2020 after the confinement due to the coronavirus pandemic, the group of ICHN-Bages walks in the sundeck of Els Comtals, in the Anella Verda (= green ring) of Manresa.The circular route was as follows: Pont Vell (= old bridge) of Manresa – Santa Caterina tower – Les Escaletes and Els Esparvers pools … Read more

Alveolar erosion in the Tower of Breny (Castellgalí)

The sandstone of marine origin is the most common type of rock in constructions in the south-eastern part of the Bages where it outcrops, from the small barracks and walls in old vineyards to the monumental buildings as the cathedral of the Seu in Manresa. As a result of its calm sedimentation in horizontal layers, … Read more