南秦岭安康汉中地区岩石物性特征及应用

徐璐平, 朱卫平, 朱宏伟, 李皎皎, 王明, 郑祺方

Physical property characteristics of rocks in Hanzhong and Ankang areas at the southern foot of Qinling Mountains and their application

XU Lu-Ping, ZHU Wei-Ping, ZHU Hong-Wei, LI Jiao-Jiao, WANG Ming, ZHENG Qi-Fang

表5 实测侵入岩放射性参数统计

Table 5 Statistic table of measured radioactive parameters of measured intrusive rocks

年代	代号	岩性	测点数	w(K)/10^-2	w(U)/10^-6	w(Th)/10^-6	序号
年代	代号	岩性	测点数	常见范围/平均值	常见范围/平均值	常见范围/平均值	序号
中生代	γ $ρ_{5}^{1 - b}$	白云母伟晶花岗岩、伟晶花岗岩	14	(2.81~7.43)/5.29	(2.01~26.43)/8.19	(2.76~24.72)/7.39	34
	$γ_{5}^{1 - b}$	黑云母花岗岩	8	(2.07~6.74)/4.22	(0.76~3.78)/2.65	(6.56~21.90)/12.16	35
	γ₅₁	花岗岩	3	(2.73~5.44)/4.20	(1.34~1.85)/1.58	(8.93~18.07)/13.12	36
古生代	γδ₃	花岗闪长岩	13	(2.26~4.66)/3.32	(0.96~4.08)/2.38	(4.46~15.13)/9.71	37
古生代	δ₃	闪长岩	3	(2.74~17.10)/7.63	(1.30~4.22)/2.77	(2.31~11.87)/7.04	38
元古代	γ $δ_{2}^{1 - 4}$	花岗闪长岩	15	(0.68~5.74)/2.57	(0.30~2.04)/1.32	(0.49~16.47)/7.09	39
	$γ_{2}^{1 - 6}$	黑云母花岗岩	6	(0.23~6.46)/2.89	(0.03~1.65)/0.89	(0.75~18.45)/8.61	40
		花岗岩	9	(0.23~6.46)/2.79	(0.14~1.58)/0.92	(0.75~18.45)/8.47	41
		斑状花岗岩	6	(1.32~5.86)/3.03	(0.30~1.63)/0.94	(2.29~15.88)/8.24	42
	$γ_{2}^{1 - 5}$	斑状花岗岩	6	(1.34~2.49)/1.90	(0.66~1.42)/0.97	(3.58~7.44)/5.31	43
		黑云母花岗岩	24	(0.86~5.28)/1.94	(0.23~2.70)/0.93	(2.23~31.41)/5.64	44
		花岗岩	9	(1.28~2.31)/1.83	(0.09~1.12)/0.62	(1.53~5.66)/4.34	45
	$ν_{2}^{1 - 2}$	辉长岩	10	(0.16~1.57)/0.71	(0.26~1.35)/0.59	(0.47~3.73)/1.51	46
	$N_{2}^{1 - 1}$	辉长岩	18	(0.24~2.98)/1.40	(0.22~2.48)/1.21	(0.51~13.86)/4.84	47
		角闪辉长岩	2	(1.00~2.21)/1.61	(0.62~1.29)/0.96	(1.10~5.88)/3.49	48
		角闪辉长辉绿岩	8	(0.30~5.84)/2.57	(0.16~4.92)/1.05	(0.87~24.38)/7.67	49
		闪长岩	4	(0.43~1.33)/0.88	(0.45~1.03)/0.74	(0.71~2.74)/1.73	50
	ρ	白云母伟晶花岗岩脉	6	(4.27~7.56)/5.53	(0.88~23.34)/8.24	(3.30~10.19)/6.68	51
	γ	黑云母花岗岩、细粒花岗岩脉	2	(4.63~5.72)/5.18	(1.77~5.51)/3.64	(10.91~23.43)/17.17	52