Granite Boulder in Padi field
|Copyright: Foozi Saad (foozi)
|Date Taken: 2009-12-31|
|Camera: Nikon D80, Sigma 10 -20 mm|
|Exposure: f/14.0, 1/160 seconds|
|More Photo Info: [view]|
|Photo Version: Original Version|
|Date Submitted: 2010-01-15 2:54|
|Favorites: 1 [view]|
|[Note Guidelines] Photographer's Note|
|During my trekking day in Kodiang, the three of us Trekk Bill from Sarawak, Jusni and me roamed the padi fields in Kodiang Kedah,Malaysia. Kodiang is small town but its padi field is so vast.|
The most fascinating fact about the padi fields here, besides a flat plain,it is madu up of limestone hills and granite boulders.
When you are in the middle of the padi fields, you could see sudden outcrops of these hills and voulders.
I give myself a thought, how come these limestones hills anf granite boulders emerged in a plain like this?.
From the reading, is this place was once a sea bed?
Sorry that the note below is quite lengthy, but it helps me in understanding this phenomena a bit.
My thanks and appreciation to TN friends who responded to my previuos upload of a limestone hill in the middle of padi fields with a banana tree( It has been deleted due to the presence of two small houses. Sorry for my fault , i thought it is OK)
From : http://www.galleries.com/Rocks/limestone.htm
Limestone is a very common sedimentary rock of biochemical origin. It is composed mostly of the mineral calcite. Sometimes it is almost pure calcite, but most limestones are filled with lots of other minerals and sand and they are called dirty limestones. The calcite is derived mostly from the remains of organisms such as clams, brachiopods, bryozoa, crinoids and corals. These animals live on the bottom of the sea and when they die their shells accumulate into piles of shelly debris. This debris can then form beds of limestone. Some limestones may have been derived from non-biogenic calcite formation. Although some limestones can be nearly pure calcite, there is often a large amount or sand or silt that is included in the shelly debris.
Limestones form usually close to the source of shelly debris although some significant transport can occur. Great sources for limestone are reefs. Reefs have been in existence for most of the history of life on Earth, but they have changed in the species that build them. Stromatolites, which are complex living structures of more than one organism (cyanobacteria and algae), formed the first reef like structures in the Cambrian Period. Early reefs in the Ordovician were composed of small crinoidal, bryozoan and brachiopod reef communities. In the Devonian, reefs became extremely large with tabulate and solitary corals starting to dominate, but brachiopods and crinoids still significant contributors. Some Cretaceous reefs really took on some huge proportions and were dominated by large, now extinct mollusks called rudist. Since those times, modern corals and bivalves (clams) have been the prime reef building organisms.
All these carbonate shelled organisms needed the same requirements out of their ocean environments: sunlight, food source and enough turbulence to remove sand and clay. Where you find these conditions is usually the same, on the margins of flat littoral surfaces. Reefs tend to be offshore from sandy beaches but not in too deep of water to not have sunlight. In fact reefs often build upon the skeletal debris of former reef inhabitants to continually grow upward to the sea surface where turbulence keeps the reef "clean" from sand and clay debris. Ancient reefs and limestone’s are closely interconnected, although not all limestones indicate an ancient reef.
Because of limestone's biogenic origins, it is often the best rock for finding fossils. The organisms themselves leave fossils in the rock and entire communities and even entire reef structures can be preserved in a limestone bed. At times a limestone is entirely composed of fossils. The rock coquina is a variety of limestone and is composed entirely of fragments of sea shells.
But most limestones have a significant amount of carbonate mud. This mud matrix can even constitute 100% of the limestone rock. Origins of this mud are debated and may just be a fine grained mud left from the erosion and abrasion of calcite shells. There maybe a non-biogenic origin too. At times modern carbonate muds can accumulate in the oceans in thick layers that are destined for limestone formation. A limestone variety is caused by swift currents that rolled carbonate mud into small beads that (once solidified) look like tiny eggs. This limestone variety is called an oolite and is sometimes very ornamental.
Limestone is almost always marine (ocean water) in origin and is usually associated with other near shore rocks types. In a typical marine scenario, to the shore side of a reef is the silica mud of a lagoon and closer to shore is the sand of a beach. The silica mud will form a shale while the beach sand will form a sandstone. Farther inland might be a swamp whose organic debris might form a coal layer. Throughout the Carbonifierous time period, coals were often interbedded with sandstones, shales and limestones in repeating cycles. These cycles represent changes in ocean levels over thousands of years as swamps are flooded by a beach and then a lagoon and perhaps a reef. But as sea levels fall the limestone of the reef is replaced by the shales of a lagoon and then the sandstone of a beach and on and on. Hundreds of feet of repeating cycles like this can occur.
Limestones are important rocks. They can be used for building materials but are not quite as strong as sandstone and are easily weathered by acidic conditions. Limestones are the primary source of lime for cements. Cement is considered one of the most important construction materials ever invented by man. Limestone can be crushed and used as road ballast. Significant quantities of limestone are quarried around the world for these purposes.
Limestone is usually the type of rock that gives us caves. Most caves are the result of dissolution of calcite by acidic waters. Ground water can dissolve portions of massive limestone formations and yield extremely large caverns. Large caves and numerous sinkholes are often found in areas that have significant limestone formations.
Metamorphosed, fairly pure limestone forms the metamorphic rock, marble. During the metamorphic process, the crystals of fine grained calcite in the limestone become merged and melded into other large crystals forming the interlocking course grained texture of the marble. All limestones under go some kind of alteration after initial solidification. These alterations can include dolomitization, recrystalization, styolitization, compaction, cementation and exsolution to name a few. All of these things are considered part of the diagenetic process. Diagenesis is anything that happens to a sedimentary rock after original deposition. At some point diagenesis and metamorphism meet and the stone is no longer a limestone, but a marble. The boundary between the two is well studied and usually not difficult to distinguish as significant changes occur to the calcite crystals during metamorphism.
nasokoun, CeltickRanger, Dis. Ac., siggi, boreocypriensis, marianas, eng55, sandpiper2, Miss_Piggy, anel, Noisette, mamcg, Heaven has marked this note useful
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very fine POV it gives a wide prospect, strange and interesting subject, a very good photo output and presentation + notes!
keep photographing! TFS
- [2010-01-15 3:56]
Fine composition of this limestone, the greens of the field and blue sky with clouds, excellent landscape. The tree is well placed in the frame. tfs.
a very beautiful photo of this limestone, i love the POV
you choosed to show the granite rock and the beautiful
landscape with cloudy blue sky, the tree at the left side
add a plus to the image, fine focus sharpness details, TFS
Ciao Foozi. Great POV here and very good details. Good light's management an intrigant sky. Perfect DOF too.
an nice shot from this limestone.
Good pov and fine colours.
- [2010-01-15 7:08]
A striking rock, carved and formed by the weather and environmental conditions over
a long period. It only needs somebody with a red jersey standing next to it to provide
scale and perspective. Ha-ha-ha, don't take me serious, I'm just pulling your leg and
just now you'd have another image deleted (chuckle). No seriously, the grass and the
tree provides more than enough perspective as anyone can easily see that it is quite
a sizable chunk of rock. Good details and natural colours. The white lines and blotches
of birdie poo also provides some character to this limestone rock.
Well done and TFS.
PS. I still wanted to critique your previous posting, but when I wanted to save it, it had
already disappeared. My advice to you is to not let the deletion of your posting bother
you too much. Learn from it and carry on. But, you maybe should just consider the fact
that it might have been the padi fields, which are agricultural activities created by man
for commercial purposes, that caused the removal.
- [2010-01-15 7:14]
What you have here is a type of hoodoo. They are most easily seen in desert areas, but are found everywhere in fact.
Hoodoos are composed of soft sedimentary rock and are topped by a piece of harder, less easily-eroded stone that protects the column from the elements.
The had rock here is probably basalt rather than granite - granite would be smoother - the base is probably limestone as you say, but could also be a type of siltstone.
- [2010-01-15 11:17]
Wonderful picture of this limestone. Very good POV. Excellent DOF. Excellent light. Very beautiful colours.
Best regards Siggi
Hi MF Foozi,
Outstanding capture of this tomb-like:) boulder from great low POV with immaculate colours and details.
Excellent DOF and composition.
TFS and have a nice night and WE MF!
Preciosa Foozi, y además nos transportas, como en otras de tus fotografías a otros lugares exóticos para nosotros a la vez que atractivos. Gran profundidad de campo y bellos colores. La fotografía te "mete" en el paisaje. Un buen trabajo.
Saludos: Josep Ignasi.
- [2010-01-15 13:41]
Very nice capture.Well seen and composed.POV,DOF and composition are wonderful.
Thanks for posting..
Salam aleikum akhi Foozi
today, we see another landscape shot from Padi field. but in this time a bit differen, not a wetland. you greatly presented and composed Granite Boulder among green vegatation and against white cloudy blue sky. focus, POV is great. natural colors and exposure also very nice. thanks for sharing. have a nice weekend
Great note on these interesting formations. A pity your previous pic was removed. Nice composition.
This boulder is really impressive and beautiful too. The variation of colours of the granite is wonderful and the lonesome tree at the back of it gives it that somewhat arty inkling. The blue sky with the woolly clouds and the green plains looks majestic. Excellent point of view to portray this amiable atmosphere and very nice composition. This image is very pleasing to the eye. Thanks for sharing image and very interesting reading material. Kind regards and have a lovely day.
Ciao Foozi, great view of interesting geological formation, splendid light and colors, very well done, have a good week end my friend, ciao Silvio
- [2010-01-16 4:36]
Very special boulder in the middle of paddy fields. It has an amazing shape and stands there like a sculpture. You have chosen a good low point of view and have well integrated the tree in the background. Beautiful sky too.
Interesting and fine posting.
Have a nice weekend
superb landscape of paddy field and rocks, nice composed image with very beautiful colorsand superb cloudy sky
Have a great sunday
- [2010-01-17 18:25]
SUBHAAN ALLAH, never seen such a piece of granite stone, we have near here in Kan Mehtar Zai not on the surface but to dig few feet undergraound.
This is beautiful shot as this rock has a friend the lonely tree beside it.
- [2010-02-04 22:07]
This picture is as impressive as beautiful. I have met similar rock formations in my country and also in other countries like Greece. It's somehow funny and surprising to encounter such a rock formation in the middle of a landscape. You have captured this phenomenon in a perfect way, I like the impact of the image and you have also added a well elaborated note.