Showing posts with label rocks. Show all posts
Showing posts with label rocks. Show all posts

Wednesday, 20 November 2013

The Pyroclasts of Peddapalli

India has a variety of tourism circuits. They include historical, pilgrim, Nature, wildlife and even medical tourism and in Mumbai there is the slum tourism which takes you to Dharavi, the largest slum in Asia and possibly even the world.
However, there is one sector where the tourism potential has not been tapped. This is the Geological sites that are available in plenty in India and Karnataka is fortunate in having four of them. Of them one is right in Bangalore city and another is near the metropolis. The other two are a little far away.
The first is of course the famed rock in Lalbagh botanical gardens and the Bugle rock in Basavanagudi. Both the rock formations are millions of years old and both are of immense geological value.
But did you know that another little known wonder of Bangalore is that it sits atop a rock and this is called gneiss.
Another geological wonder is the Pyroclastic rocks of Peddapalli near Kolar, which is a little more than 75 kilometers from Bangalore.
The third geological wonder is the Pillow lava formations in  Maradihalli near Chitradurga. The fourth geological monument of national importance is the Columnar basaltic lava on St.Mary's Island near Udupi in Arabian Sea.
Since, an earlier post has already dealt with both the rocks at Lalbagh and Bugle Rock, let us go to the geological rock formations in Kolar district.
Kolar district adjoins Bangalore district and from times immemorial it has been known as the land of gold. Kolar and its surroundings are historically important. It is also the district with a large number of pilgrim places.
Today, thousands of people travel through the district on the way to Tirupathi-Tirumala bit few know the jaw-sagging rocky outcrops that we see when we enter the district is more than a picture postcard.
The rock formations at Peddapalli near Kolar have been declared as a natural or geological wonder by the Geological Survey of India (GSI). But apart from budding geologists and Earth scientists, few know of the importance of this unique rock formation.
Peddapalli is a small village  about 700 meters east of the road connecting Kolar Gold Field with the Bangarpet- Betmangala.
There is signboard put up by the Geological Survey of India (GSI) leading to the rock formation and it can be best approached by driving towards the southerly diversion near the 10 km stone for about one kilometer.
The rocky outcrop of pyroclasts is on the north west corner of the village. Pyroclastic Pyroclasts is also called as tepra  (It is a Greek word for ash) and they are nothing but volcanic fragments that was hurled through the air by volcanic activity that took place here several millions of years ago.
The explosions could have been one or many and such rocks would have hardened over a period of several million years. A  pyroclastic rock is a hardened, solidified or compressed version of an originally loose pyroclastic deposit that was thrown up in air and fell in a heap on the ground and subsequently solidified.
The word pyroclastics is derived from a Greek word meaning fire. This is reference to the red hot lava that comes out a volcano. Thus the term pyroclastic means broken by fire.
If the volcanic rocks has been transported and reworked through mechanical action either by wind or water, they are then called volcaniclastic.
By the way, even ash is considered to be pyroclast as even it is a form of  fine dust made up of volcanic rock.
These pyroclast thrown up by a volcano vary in size and composition. However, all these ejected material consolidate to form pyroclastic rocks.
The smaller rocks is known as lapilli, while bigger sized rocks are called as volcanic bombs or blocks. Some of the bigger rocks are known to weigh thousands of pounds. Some rock fragments of granite gneiss found in Peddahali measure upto 80 cm in diameter
The GSI says the Pyroclastic rocks of Peddapalli is a welded rock of large fragments of granite, granite gneiss, basalt and banded ferruginous quartzite which is set in a matrix of ignimbrite. While many rock fragments are angular, some of them are round in shape.

Check out the natural rock formation. It will help us understand the history of the Earth where we all live.

Sunday, 28 April 2013

When a Goddess alighted from an elephant

The Goddess was flying through the sky on her elephant and when she saw a serene and beautiful spot in a thick forest, she came down and took rest. She then took off again, but this time without the elephant as her Savari or  vehicle.
The elephant slowly merged with the surrounding landscape and today there is a huge boulder which bears the painting of an elephant. This painting was one among the many rocks of a small park which has come up at the spot.
The road too is known after the pachyderm and the temple of the Goddess too is almost diagonally opposite the painted elephant. If the elephant rock is on one side of the road, the temple to the Goddess is on the other side of the road.
This is the Ane Bande or Elephant Rock road of Jayanagar, which is an important junction for vehicle coming from South End and proceeding to Jayanagar 3rd Block, Jayanagar 4th Block and the Shopping Complex.
This road is perhaps the only one that can be described as an ode to an elephant.
According to legend, Goddess Patalamma, one of the four local deities of Bangalore, was astride her elephant and passing through the sky when she saw a spot in today’s south Bangalore. She alighted from the elephant and spent some time in the forest and this is the place where the Ane Bande road passes through.
She again took to the skies after some time but she was without her elephant which then dissolved into the rocks. Over time, locals of the area drew the picture of an elephant on the rock and also consecrated the Patalamma Temple across the road.
There is a small temple of Bhavani Shankar adjacent to the elephant rock and several smaller rocks which are believed to be part of an elephant herd. The temple was consecrated by Shantaveera Mahasawmi on November 6, 1994. It was built by a local corporator Bangaramma.  
Today, both Patalamma temple and Ane Bande or Elephant Rock road are inseparables. The Elephant Rock Road begins from the South End Circle and joins the 9th main road, Jayanagar 3rd Block.
When Jayanagar was formed in 1948, some builders wanted to take over the land around the elephant rock. One of the builders employed two engineers to get the rocks removed. The story goes that the engineers died and since then nobody has dared to touch the rocks.
The Patalamma temple a few decades ago was the village deity of five villages around Jayanagar — Nagasandra, Kanakanapalya (area around RV teachers College), Siddapura, Byrasandra and Yediyur. In the early years of the 19th century, it was the deity of  fourteen villages.
The temple is more than 500 to 600 years old. The fire-sacrifice ritual, that is held once in three years, is famous. Devotees throng to the temple on Tuesdays and Fridays.
Within the temple premises are two long pillars with another stone joining them at the top with iron hooks. This is the swing of Goddess Patalamma and she sat on the swing when she alighted from the elephant.  The swing today is used on ceremonial occasions. Close to Patalamma temple is another small temple dedicated to Maha Ganapathi.
At the junction of South End Circle and Elephant Rock Road is the  Southern range of City Central Library. This is one of the oldest libraries in this area and it was established way back in 1969.
Today, very few remember the history of the road and it is slowly being transformed from a totally residential area to a place with business and commerce.
Interestingly, the road that continues after South End circle is called Patalamma Temple Street. This comes under Basavanagudi.