ENRICHMENT OF RADON (222Rn) CONCENTRATION IN REMAH VOLCANO, NE-JORDAN

Abstract

Remah Volcano (RV) is one of the numerous volcanoes that are distributed in three volcanic fields in the Jordanian Harrat, northeast Jordan. The RV is about 4 km 2. It is about 80 m high. They are arranged in three main horizons: lower, middle, and upper and show planar stratification. 222 Rn content has been measured by using Nuclear Track Detector (Columbia Resin CR-39) studied rocks show that the range from 945-1283 (Bq/m 3) and the average of 1104.46 (Bq/m 3), the highest content of 1175-1283 (Bq/m 3), is recorded in the samples from the upper horizon from RV. 222 Rn ranges between 1049-1125 (Bq/m 3) as shown in the middle horizon and have contents of 945-999 (Bq/m 3), in the lower horizon. The 238 U concentrations increase gradually upwards, respectively. This study concludes that the correlating of contents of 238 U contents with 222 Rn concentrations results obtained in this study it's clear that the 222 Rn-concertation shows a distinct increase as 238 U contents increases. This can lead to the conclusion that the 238 U-decay is the main source that is produced 222 Rn from the interstitial glass which resulted from residual melt in tephra rather than from emission of inferred source in cracks and fractured of inferred faults.

Measurement of Radon (222Rn) Concentrations in the Basaltic Rocks of Yarmouk River, Jordan

“…• Basalt rocks Basaltic rocks have considerable amounts of radioactivity due to the presence of minerals that containing radioactive elements such as uranium ( 238 U) and thorium ( 232 Th and 234 Th) (Cox et al, 1979). Silicate minerals in basalts such as forsterite (olivine), labradorite (plagioclase), augite and diopside (pyroxene) have radioactive elements (Al-Malabeh et al, 2008;Al-Malabeh and Hamed, 2020). Also, magnetite and apatite contain considerable amount of the most 238 U (Hughes, 1982 andAl-Malabeh, 2010).…”

“…Basaltic, limestone and sandstone rocks, as well as granite rock, are used in building materials now. It can be said that the essential sources of radon in the outside locations are soil and water (Al-Malabeh and Hamed, 2020;. Nearly 80% of the pop-up radon gas to the outside media is produced in the earth's crust (crustal rocks).…”