टेथिस सागर

tethis sagar jo karo doan varsh poorv prithvi par vidyaman tha. juresik kalp ka samudr vartaman bhoomadhy sagar ke vistar ki tulana mean bahut vishal tha aur yatharth roop se sari prithvi ko ghere tha. is sagar ko tethis sagar kahate haian. dakshini samudr aaustreliya mahadvip ke dakshin se hota hua dakshini amarika ke dakshini pradesh tak phaila hua tha. vidvanoan ka anuman hai ki bharat ke uttari pradesh se lekar uttari barma, hindachin evan philipin se hota hua tethis sagar ka hi ek bhag dakshini sagar banata tha.

• aj jahaan himalay hai, paanch karo d sal pahale vahaan tethis sagar hua karata tha. 'laphathal' vah ilaka hai, jo us vakt tethis sagar ki talahati mean tha.
• tethis se himalay banane ki prakriya mean tab pragaitihasik kal ki nadiyoan dvara tatkalik mahadvipoan se laee gee mitti ki tahoan mean samudri jiv dab ge. prithvi ki garmi aur dabav se ve dhool ki paratean chattanoan mean badal geean. prithvi ke lagatar p date baloan ne in chattanoan ko paha d ki choti tak pahuancha diya. yahi karan hai ki in chattanoan mean dabe samudri jivoan ke jivashm laphathal ki choti par shan se virajaman haian.
• 13 se 17 karo d sal purane shiphelopoda prajati ke samudri jivoan ko patthar mean niharana bhi kam romaanchakari nahian hai. shiphelopoda prajati ke jiv batate haian ki 13 karo d varsh poorv tethis sagar ki gaharaee 1000 mitar rahi hogi.

• visheshajnoan ka mat hai ki jahaan abhi himalay hai, vahaan pahale tethis sagar tha. qarib 50 miliyan varsh pahale iando-aaustreliyan plet aur yooroshiyan plet mean takkar ke karan tethis sagar ki talahatti mean bhoo-garbhiy halachal huee aur himalay ka utthan sanbhav ho saka.
• mana ja raha hai ki mahadvipiy visthapan ki prakriya ab bhi jari hai aur is karan himalay ka nirman bhi ho raha hai.
• pletoan ke khisakane ke karan hi myaanmar mean arakan yoma, aandaman nikobar dvip samooh aur bangal ki kha di ka nirman sanbhav ho saka hai.