Weathered rock, organic matter, and biological activity combine to create the fertile ground that supports the island's lush rainforests and agriculture. This foundational layer determines everything from the fertility of its soil to the path of its rivers.
Island Structure and Geological Foundation of Puerto Rico
The Geological Blueprint: The Foundation of the Island At its core, Puerto Rico is a geological mosaic, a jigsaw puzzle of rock formations that dictate its landscape and resources. Coastal and Marine Composition Approximately 80% of Puerto Rico’s mass is exposed above sea level, but the island’s total mass extends into the surrounding ocean.
The interaction between the freshwater rivers and the saltwater ocean creates vital estuaries, or *lagunas*, which serve as nurseries for marine life. These marine environments effectively double the physical footprint of the island, creating a unique relationship between land and sea.
Island Structure and Geological Foundation of Puerto Rico
Water: The Circulatory System No examination of what Puerto Rico is made of would be complete without acknowledging its hydrological systems. Interestingly, this limestone originated from the accumulation of marine organisms like coral and shell in a warm, shallow sea that once covered the area.
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