চিকশুলুব খাদ
চিকশুলুব খাদ (আ-ধ্ব-ব: [tʃikʃuˈlub]) ইউকাটান উপদ্বীপে মাটির নিচে চাপা পড়ে থাকা একটি প্রাচীন সংঘর্ষ জ্বালামুখ। এর কেন্দ্র মেক্সিকোর ইউকাটান অঞ্চলের চিকশুলুবে অবস্থিত। প্রায় ১৮০ কিমি (১১০ মাইল) ব্যাসবিশিষ্ট এই জ্বালামুখটি পৃথিবীতে এ পর্যন্ত নিশ্চিতভাবে আবিষ্কৃত বৃহত্তম সংঘর্ষ কাঠামোগুলোর একটি। যে গ্রহাণু বা ধূমকেতুর আঘাতে এটি তৈরি হয়েছিল তার ব্যাস ছিল অন্তত ১০ কিমি (৬ মাইল)। জ্বালামুখটির নাম রাখা হয়েছে পার্শ্ববর্তী শহরের নামানুসারে। অবশ্য মায়ান ভাষায় এই শব্দের অর্থ "শয়তানের লেজ"।
[সম্পাদনা] মন্তব্য
[সম্পাদনা] তথ্যসূত্র
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[সম্পাদনা] বহিঃসংযোগ
- Satellite image of the region (from Google Maps)
- NASA JPL: "A 'Smoking Gun' for Dinosaur Extinction", March 6, 2003
- Chicxulub, Crater of Doom
