What are the sedimentary exhalative deposits? Explain the characteristics of ophiolite derived Cu-Zn deposits.

Sedimentary exhalative (SEDEX) deposits are a type of stratiform, syngenetic mineral deposit formed from hydrothermal fluids exhaled onto the seafloor in sedimentary basins. These deposits primarily consist of lead (Pb), zinc (Zn), and silver (Ag), often occurring as finely laminated sulfide ores within fine-grained siliciclastic or carbonate host rocks. SEDEX deposits are typically found in rifted continental margins, intracratonic basins, or back-arc basins where deep-seated hydrothermal activity is driven by tectonic extension.  

The mineralization process in SEDEX deposits begins when metal-bearing hydrothermal fluids, derived from deep crustal sources, migrate through fault systems and vent onto the seafloor. Upon mixing with cold seawater, the metals precipitate as sulfide minerals, forming laminated ore bodies. The stratiform nature of these _________ _____ ________ _______ __________ ________ ________ ________ ____ ___ ____.
__________ __________ _____ __________ ______ _______ ______ __________ _________.
____ ____ __________ ___ ___ _______ _____ _________ __________ ________ ________ ______.
_____ ________ ____ _________ __________ ___ _________ _________ _____ _____ ________.
_________ _______ ________ __________ _______ ____ ______.
__________ ___ ______ ____ _____ _____.
___ ___ _________ _________ __________ ______.
________ _______ _____ __________ ______ ______ ____ _______ __________ __________ _____ __________.
___ ____ _____ ______ _________ __________.
____ _____ ______ ______ ______ _______ _______ ______ __________ ___.
_______ __________ __________ _______ ___ _______ ________ ____ ______ ___ _________ __________.
__________ ______ __________ _______ _________ ______ _______ ___ ______ ____ ___.
_____ _____ ___ _________ ________ ___ ______ ____ ____ ________.
____ _______ _________ ______ _________ ______ _____.
________ ____ _____ _______ ______ ____ ___ _______ _______ ______.
_____ ________ ____ __________ _________ ____ ________ _____ _________.
_______ _____ ________ ________ ________ ___ ______ __________ ____ ______ _______ ________.
________ _________ ______ _____ ______ ____ ________ _________ ___ ___.
___ ________ ____ _____ ________ ________ ______ ________ __________.
___ ________ _______ _____ ________ __________ _______ ______ ____ _________.
_______ _______ ______ _____ _________ ____ ____.
______ ___ ____ _______ _________ ________ __________ _________ ______ ___ ________ __________.
______ ___ _____ ________ ___ ________ ____ ___ _________ __________ ______.
__________ _______ _____ __________ ____ __________ ___ _______ ____.
_____ _______ __________ _______ _______ __________ ___ __________.
________ _______ __________ __________ _____ ______ _________ ______ ______ _______ _____ _____.
____ ________ ______ __________ _________ ________ ______ ________ ____ _________ ________.
___ ________ ___ _____ ___ _____ ________ _____ _______ ________ __________ __________.
___ _____ __________ _______ _________ __________ ____.
_________ _______ ___ __________ ___ _______.
__________ _________ _________ _____ ___ _________.
_______ _____ _______ ________ _____ ___ ____ ______ ______ _________ ____ _______.
____ _____ _______ __________ ________ ________ __________.
___ ___ ______ _________ _____ _____ ____ ______ __________.
_________ ________ ________ ____ _____ ______ _________ ___ ___.
__________ _____ __________ _______ __________ ___ _______ _____.
________ ____ _____ ___ ______.
____ _______ _____ _________ ___ ______ ____ _______ __________ _______.
_________ ____ __________.
Get Full Answer on WhatsApp