Ideographic: An army 方 marching under a flag 疋Radical:

meaning for xuán:

  • - to revolve
  • - a loop
  • - a circle

meaning for xuàn:

  • - to whirl
  • - immediately
  • - variant of 镟

bùtóng不同
xuán
huí
huǒshānyán火山岩
jùyǒu具有
bùtóng不同
de
dìzhì地质
dìqiúhuàxué地球化学
tèzhēng特征

Volcanic rocks of each cycle have their own features, reflecting different geneses .