Explosive powder plug and method of using the same

A blasting plug for using dry blasting powder in a borehole having water in a bottom thereof when said borehole is drilled into the earth's crust producing stones and rocks, said blasting plug comprising:

• a lower cylinder portion having an inside diameter and an outside diameter, said outside diameter being less than an inside diameter of said borehole;
• an inverted cone forming at a bottom of said lower cylinder portion;
• an cylindrical plug having an outside diameter slightly larger than said inside diameter of said lower cylinder portion for a snug frictional fit there between;
• longitudinal slits cut in an upper portion of said cylindrical plug to form upper tentacles;
• said lower cylinder portion and said cylindrical plug being lighter than water;
• said stones are inserted in said lower cylinder portion below said cylindrical plug to cause said blasting plug to fall in said borehole;
• said rocks are dropped in said borehole on top of said blasting plug to cause said upper tentacles to frictionally engage said borehole so that the top of said rocks in said borehole remains above the top of said water before inserting there above said dry blasting powder and blowing said borehole.