ROCK FORMATIONS OF GOZO

The Maltese islands, what a hold you have come to have over me! It all started at the airport last spring when we arrived on a sweltering hot night and I could sense a scent that I was not used to, at the time I did not take too much notice but later I remembered it and I got to know what it was that I could smell. It was the scent of limestone! I know this sounds a little unbelievable or impossible, but I swear by it myself. It was the start of my love affair with these islands, and it’s not only the scent – because of course that was only the first impression, later other scents took over, a variety of flowers for example.

In the light of day though, it was not the scent either that made me love this place so much, it is the limestone, the honey coloured limestone which surrounds me here, I breathe it, I see it with my eyes constantly because the houses and other buildings are all built in it, and it is so very pleasing to the eye. In fact I think it feeds one’s soul, no I am sure of it.

So after spending a month on Malta and a month on Ghawdex (Gozo) we went back to Ireland for the summer, and on the first of October we were back, we rented a flat from a very nice man, this in the heart of Ir -Rabat (Victoria). I am totally relaxed here, I probably absorb the calcium from the limestone and this is exactly what I need. (I was born and raised in the Kempen and Antwerp, a sandstone area, sandstone has its origins in quartz rock, it contains silicon. But what this has to do with the limestone here actually is nothing, it is just that I seem to be sensitive to what soil or rocks I am living on and this limestone suits me so very much, I feel happy and relaxed here. It is also the beauty of this rock type all around me, wherever I look I see the stone, and in the evening sun the stone turns to pure gold.  I cannot get enough of it.

So I am trying to educate myself a little in the geology of the Maltese islands, I took out some books from the library and did out a table of the different layers of rock that are to be found here.

geological-chart

The lower Globigerina limestone is the stone that is mainly used as a building material, they call it Franka on Gozo.  This stone is made up of a fine grain and is easily workable.  It is a most beautiful stone to look at and it makes the houses, churches and buildings on Gozo very attractive. It is an easy medium to carve and this is done with great skill here.

Because this stone is soft it erodes easily too over the years.  Very often fossils can be seen plainly, mainly planktonic fossils.

I am not well up in geology, therefore I cannot talk freely as I would like to do about the rock formations, but I am learning.

More examples of limestone, and carvings.  Below are examples of the limestone found at the cliffs at Xlendi, magnificent to look at.

Then  (below) there is an example of the blue clay rock formation, it overlies the Globigerina Limestone formation and erodes easily.

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The two books that I used for information, I took them out from the library and was glad to have found them.

Alas this is my incomplete discussion on the rock formations of Gozo.  There is so much more to say about these rocks.

ROCKS AND FOSSILS

Malta is entirely composed of sedimentary rocks. The specific area around Marsaxlokk consist of Globigerina Limestone. Globigerina Limestone is a soft stone that is easily eroded. It is full of planktonic fossils and according to what I read this indicates that its deposition was in deep waters below wave action. I have seen this soft Globigerina Limestone around here and have some samples, it is white and fine grained. My interest though, has mainly been in the upper Globigerina Limestone which is harder, coarser, and honey coloured, it is used as a building material, and has been since ancient times in the island, I love its colour and texture, it also makes the villages look bright and full of light. I have walked along the houses of this village and seen the fossils in the walls of the older buildings, fascinating and beautiful! We have also stayed in a Maltese house that is 200 years old, its stone walls bare and hand cut, I did get to thinking one night while I should have been sleeping, about the fact that all that surrounded me was fossilised beings, once alive, now there in another form, amazing to ponder on.  The walls throw out a warmth and a good feeling.

Anyway I am not a geologist, but I have a life-long interest in stones and minerals, and have a huge collection at home, I cannot resist picking up more stones, though these days it is to take photos of them, examine them with a magnifying glass, and ask myself what they could be (luckily for me I have a good Geologist friend). So I am going to post photos of some of the interesting stones I found along the beach at Marsaxlokk, but also some of the fossils I found along the walls of the village houses.

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What a fossil!

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 Tempestite is a storm deposit. Tempestites are rocks which show evidence of a strong storm, which have redeposited pre-existing sediments.  This happens in shallow waters, and it are the waves that redeposit the sediments.  I found this little gem of information on Wikipedia.org

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This is a conglomerate rock type.

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Here I am not sure, but found quite a few of these rocks that had what seemed a layer of fossils or some sort of deposit (the white stuff).

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This on the same rock, a beautifully intricate design (fossil) can be seen here.

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Me examining one of the rocks

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The coarser, honey coloured upper Globigerina Limestone

Two samples, one the chalk, the other I think is more of the upper Globigerina Limestone

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Somewhere I read that the holes could have been made by mollusc boring into the soft material back in time?

Some of the fossils I found in the walls of old houses, I obviously only took photos of them and let them be where they were.  So beautiful, but as far as I believe this house is marked for restoration, I hope they will preserve the fossils.

I have loads more photos of stones, rocks and fossils that I came across here, it has been one of the highlights of my stay in Malta, I hope that some of my dear blogger friends will have enjoyed these wonderful creations as much as I am.   And I would be very pleased and happy to listen to reactions and knowledge from other Rock enthusiasts.

Websites which I have found interesting are:  http://www.sandatlas.org/limestone/#comment-40236 and http://karsteneig.no/2013/11/malta-a-country-shaped-by-limestone-and-a-bit-of-very-old-shit/#comment-15952    and    http://www.maltainsideout.com/11993/living-stones-a-brief-guide-to-maltas-geology/