
laukka (agniparvvatham)

vadakkan chiliyile altiplanoyile aandeesinte madhya agniparvvatha mekhalayile uyarnna andesitic straattovolkkaanoyaan laukka. bharanaparamaayi ithu arikka vaii pareenakotta mekhalayile putrayilaanu sthithi cheiyunnathu. 1.5 dasalaksham varshangalkk munbu muthal mayoseen kaalaghattatthinte avasaanathil agniparvvatham sajeevamaayirunnu. pleosene kaalaghattatthinte avasaanathil oru pradhana agniparvvatham agniparvvatham thakarthu.
bhoomishaasthram.
1.5 dasalaksham varshangalkk munbu mayoseen kaalaghattatthinte avasaanathil sajeevamaayirunna laukka agniparvvathathil ninnulla aandesaittukal rund grouppukalaayi nilanilkkunnu, plagioclase sambannamaayava, maattangalkk vidheyamaayava, sookshumamaaya daanyangalulla silisic enniva puthumayullavayaan. precambrian muthal cretatius yugam vareyulla paarakalil ninnu roopappetta oru puramthodu kondu eee pradesham adivarayidunnu, kanam vare. amphibole sambannamaaya laava ozhukkil oru ekeekritha agniparvvatha koonn roopappettu. pilkkaalatthe oru valia ignimbraitt pottitheri kendratthinte thakarchaykku kaaranamaakukayum laukka ignimbraitt roopappedukayum cheythu. vadakkukizhakkan attathu oru laava thazhikakkudamulla oru caldera undu.
ell diablo roopeekaranathe bhagangalaayi moodukayum luluta malayidukku niraykkukayum cheiyunna laukka ignimbraittinu kanam vare undu. sanidine vishakalanathe adisthaanamaakki eee rhiolitic ignimbraittinte aarr-aarr praayam 2.73 ± 0.02 maa ennum biotitil ninnu 2.87 ± 0.05 maa ennum nirnnayichu. boleeviyayile perez ignimbraittumaayum thekkan peruvile paachiya ignimbraittumaayum laukka ignimbraitt parasparabandhithamaan. kopakviya-tignamar thakararinoppam, kizhakk bhagam padinjaaru bhaagathekku uyarthi, laukka ignimbraitt sthaanabhrashtamaakki, ithu pleosene kaalaghattatthinte avasaanathil nikshepichathinu sheshamulla tectonic pravartthanatthe soochippikkunnu. bhaagikamaayi, laukka ignimbraitt complomatic terrous nikshepangalaal moodappettirikkunnu.

