A basic or fundamental layer of sediment or material that has accumulated over time, often in a geological context.

आधारिक जमा

English Usage: The basal deposit in this area reveals evidence of ancient life forms.

Hindi Usage: इस क्षेत्र में आधारिक जमा प्राचीन जीवन रूपों के सबूत प्रकट करता है।