鍘熸(bi膩o)椤岋細鍥涘窛鏀�鏋濊姳浜岀枈绱�(j矛)纰抽吀宸�-绋�鍦熺う鍖栧牽鎬ч洔宸栫殑鐧�(f膩)鐝�(xi脿n)鍙婃剰缇�
鎽樿锛氶�氶亷1鈭�5钀う鐢�(ch菐n)鍦拌唱(zh矛)瑾�(di脿o)鏌�锛屽湪鏀�鏋濊姳绱呮牸閲╅垿纾侀惖绀﹀崁(q奴)棣栨鐧�(f膩)鐝�(xi脿n)浜岀枈绱�(j矛)(262.4~258.9Ma)鐏垚纰抽吀宸�-姘熺⒊閳扮う鍖栧牽鎬ч洔宸栵紝鍛堣剤鐙�銆佺恫(w菐ng)鑴堢媭鎴栧窎鏋�/鏍媭渚典綅浜庨嚛閳︾閻电う楂旀垨绀﹀寲閻甸巶璩�(zh矛)宸栭珨涓�锛屽垵姝ュ垎鏋愮█鍦熺う鍝佷綅閬�(d谩)0.3%~0.4%锛孨b2O5閬�(d谩)0.14%锛岄’绀鸿純濂界殑缍滃悎鍒╃敤鍓嶆櫙銆傝┎鐧�(f膩)鐝�(xi脿n)鏃㈠叿鏈夊崁(q奴)鍩熸壘绀︽寚绀烘剰缇╋紝鍙堝叿鏈夋繁鍏ョ爺绌跺敞鐪夊北澶х伀鎴愬窎鐪佸窎婕�-鎴愮う浣滅敤鑸囨紨鍖栭亷绋嬬殑閲嶈鎰忕京锛屽悓鏅傞倓鍏锋湁鍦扮悆娣遍儴纰冲惊鐠�(hu谩n)閬庣▼鐨勬寚绀烘剰缇┿��
1.闋呯洰姒傛硜
鏀�鏋濊姳鍜岀磪鏍奸惖绀︿綅浜庝笂鎻氬瓙闄稿瑗跨罚鏀�瑗胯璋峰付锛屽付鍏�(n猫i)浠ョ敘(ch菐n)鍑哄ぇ瑕�(gu墨)妯＄殑閲╅垿纾侀惖绀﹀拰鏅惰唱(zh矛)鐭冲ⅷ绀︾瓑绀︾敘(ch菐n)鑰岃仦鍚嶃��2017骞�锛岃嚜鐒惰硣婧愰儴涓湅鍦拌唱(zh矛)瑾�(di脿o)鏌ュ眬閮ㄧ讲瀵︽柦浜�“鍥涘窛鏀�瑗块嚛閳﹂惖鐭冲ⅷ绀﹁硣婧愬熀鍦扮稖鍚堝湴璩�(zh矛)瑾�(di脿o)鏌�”闋呯洰锛屾灞簬“鏉辩壒鎻愭柉鎴愮う甯跺ぇ鍨嬭硣婧愬熀鍦拌(di脿o)鏌�”宸ョ▼锛岀敱鑷劧璩囨簮閮ㄤ腑鍦嬪湴璩�(zh矛)瑾�(di脿o)鏌ュ眬鎴愰兘鍦拌唱(zh矛)瑾�(di脿o)鏌ヤ腑蹇冩壙鎿�(d膩n)銆傞爡鐩懆鏈熺偤2017—2018骞�銆備富瑕佺洰妯�(bi膩o)浠诲嫏(w霉)鏄互鐭冲ⅷ绀﹀拰閲╅垿纾侀惖绀﹀叡浼寸敓璩囨簮鐐洪噸榛�锛屽湪鍗�(q奴)鍏�(n猫i)闁嬪睍1鈭�5钀う鐢�(ch菐n)鍦拌唱(zh矛)瑾�(di脿o)鏌ュ拰灏堥爡鐠�(hu谩n)澧冨湴璩�(zh矛)銆佹按鏂囧湴璩�(zh矛)娓噺锛屾煡鏄庢櫠璩�(zh矛)鐭冲ⅷ绀﹀拰閲╅垿纾侀惖绀﹀叡浼寸敓閳с�侀幍銆侀帢銆侀嵑銆侀姦銆侀尭绛夌█鏈夌█鏁ｅ厓绱犵璩︾壒寰�銆佽硣婧愭經鍔涘拰鐠�(hu谩n)澧冨湴璩�(zh矛)姊濅欢锛屾帰绱㈠缓绔嬬挵(hu谩n)澧冩壙杓夊姏鍦拌唱(zh矛)瑭曞児鏂规硶楂旂郴锛屽姪鎺ㄥ湅瀹剁礆缍犺壊绀﹀北瑭﹂粸锛屾敮鎾愭湇鍕�(w霉)鏀�鏋濊姳甯傚湅瀹剁礆鎴�(zh脿n)鐣ヨ硣婧愬壍(chu脿ng)鏂扮爺鐧�(f膩)鍩哄湴寤鸿ō(sh猫)銆�
2.鎴愭灉绨′粙
(1)閫氶亷鏀�鏋濊姳鑸囩磪鏍奸嚛閳︾閻电う鍗�(q奴)1鈭�5钀う鐢�(ch菐n)鍦拌唱(zh矛)瑾�(di脿o)鏌ュ拰1鈭�2000銆�1鈭�500宸栭珨-铦曡畩-绀﹀寲鍓栭潰瀵︽脯宸ヤ綔锛岀祼(ji茅)鍚堝窎鐭冲(xu茅)銆佺う鐗╁(xu茅)鏂归潰鐨勮瀵熷拰鐮旂┒锛屽湪鏀�鏋濊姳鍦板崁(q奴)鐨勬攢绀�-閭ｆ媺绠愪竴甯讹紝浠ュ強绱呮牸—鏂颁節涓�甯舵柊鐧�(f膩)鐝�(xi脿n)澶ч噺鐨勭█鍦熺う(鍖�)鍜岀伀鎴愮⒊閰稿窎楂�/鑴堢兢锛岃�屽崁(q奴)鍏�(n猫i)鑷充粖灏氱劇閫欐柟闈㈢殑鍫遍亾銆�
绌洪枔涓�锛岀伀鎴愮⒊閰稿窎鑸囬嚛閳︾閻电う楂旀垨绀﹀寲閻甸巶璩�(zh矛)宸栭珨銆佹闀峰窎楂旂穵瀵嗗叡/浼寸敓锛岀附楂斿憟杩慡—N鍚戠殑甯剁媭鍒嗗竷锛屽彈鎺т簬鍗�(q奴)鍩熸(g貌u)閫犳槑椤�?锛涢釜鍟嗗閲抮涓昏鍛堝窎鑴�/澧�銆佸窎鏋�銆佸ぇ宸栨牚鐙�鐢�(ch菐n)鍑�锛屼镜鍏ヨ�佸湴灞ゆ垨浜岀枈绱�(j矛)閲╅垿纾侀惖绀﹂珨銆佺う鍖栭惖閹傝唱(zh矛)宸栭珨涓�锛屾垨鏄�“闋嗗堡”渚靛叆灞ょ媭鍫嗘櫠杓濋暦宸栦腑(鍦�1-A~G)锛屽窎鐭冲彲瑕嬬矖绮掋�佷腑绮掑強绱�(x矛)绮掔祼(ji茅)妲�(g貌u)(鍦�1-H~I)銆傞彙涓嬭杽鐗囧垵姝ラ憭瀹氬嚭涓昏绀︾墿鏈夋柟瑙ｇ煶銆佺櫧浜戠煶鍜屾﹦娆栫煶(鍦�1-J~L)锛岄儴鍒嗘﹦娆栫煶宸插眬閮ㄦ垨瀹屽叏铔囩磱鐭冲寲锛屽壇绀︾墿鍙鑷舰鏅舵枩閶煶;渚濇摎(j霉)纰抽吀楣界う鐗�锛屽彲閫�(j矛n)涓�姝ョ窗(x矛)鍒嗙偤鐧戒簯鐭崇⒊閰稿窎銆佹柟瑙ｇ煶纰抽吀宸栧強寰�(f霉)鍚堝瀷纰抽吀宸�銆�
A~E—纰抽吀宸栧憟宸栧⒒/鑴堢媭渚靛叆纾侀惖绀︽垨绀﹀寲杓濋暦宸栦腑;F~G—鎺ヨЦ甯跺彲瑕嬬⒊閰稿窎“闋嗗堡”渚靛叆鎴栧垏鍓茬う鍖栧爢鏅惰紳闀峰窎;H~I—绮楃矑銆佷腑—绱�(x矛)绮掔⒊閰稿窎鎵嬫(bi膩o)鏈�;J~L—姗勬瑬鐭虫垨鐒°�佹垨閮ㄥ垎銆佹垨瀹屽叏铔囩磱鐭冲寲銆傜う鐗╀唬铏燂細Cal—鏂硅В鐭�;Dol—鐧戒簯鐭�;Srp—铔囩磱鐭�;Ol—姗勬瑬鐭�;PT—鏂硅В鐭抽洐鏅�
绋�鍦熺う鍖栧牽鎬ч洔宸栦富瑕佺敱绮楃矑姝ｉ暦宸栥�佹闀峰亯鏅跺窎(鍦�2-B)鍜屼腑—绱�(x矛)绮掕闁冩闀峰窎銆侀湏杓濇闀峰窎绛夊窎鐭抽鍨嬬祫鎴�锛屽苟浼撮毃鍑虹従(xi脿n)涓�浜涚煶鑻�-铻㈢煶鑴�(鍦�2-C)绀﹀崁(q奴)鍏�(n猫i)灏ゅ叾浠ョう鍖栫矖绮掓闀峰窎-姝ｉ暦鍋夋櫠宸栨渶鐐洪啋鐩�佸ぇ閲忓嚭鐝�(xi脿n);涓昏鍛堣剤鐙�銆佺恫(w菐ng)鑴堢媭鎴栧窎鏋濈媭渚典綅浜庨嚛閳︾閻电う楂旀垨绀﹀寲閻甸巶璩�(zh矛)宸栭珨涓紝鍏跺搴﹀父寰炲咕鍘樼背鑷冲咕鍗佸帢绫充笉绛�锛屽鑰呭彲閬�(d谩)鏁�(sh霉)绫�锛屽瘑搴﹀ぇ(鍦�2-A)锛屾垚缇ょ敘(ch菐n)鍑�锛岃剤楂旂兢寤朵几寰炴暩(sh霉)鐧剧背鑷虫暩(sh霉)鍗冪背涓嶇瓑銆傜う鍖栧牽鎬ч洔宸栫殑绀︾墿鎴愬垎杓冨京(f霉)闆�锛屼富瑕佺う鐗╂湁閴�闀风煶(姝ｉ暦鐭�銆佸井鏂滈暦鐭�)銆侀粦浜戞瘝銆佽闁冪煶銆佽紳鐭�(闇撶煶銆侀湏杓濈煶)锛屽皯閲忔枩闀风煶銆佺煶鑻便�佽灑鐭�銆侀嫰鐭�銆佹鐭崇瓑绀︾墿銆傜█鍦熺う鐗╀富瑕佺偤姘熺⒊(閳�)閳扮う锛屽鍛堢█鐤忔蹈鏌撶媭鎴栨槦榛炵媭锛岀う鐗╂柊楫潰鍛堣牊榛冭壊鑷虫贰绱呮鑹�锛屽叿鏈夌幓鐠冨厜婢ゅ埌娌硅剛鍏夋兢锛岀祼(ji茅)鏅剁▼搴﹁純濂斤紝涓昏鍛堢墖鐙�銆佹澘鐙�锛屽眬閮ㄥ彲瑕嬭嚜褰㈡櫠鐨勫叚鏂规櫠褰�(鍦�2-D~F)銆�
A—绀﹀寲鍫挎�ч洔宸栬剤缇ょう鍗�(q奴)闇查牠鐢�(ch菐n)鐙�;B—绀﹀寲姝ｉ暦鍋夋櫠宸栨墜妯�(bi膩o)鏈�;C—鐭宠嫳–铻㈢煶鑴堜腑娣＄磪妫曡壊姘熺⒊閳扮う;D—绱�(x矛)绮掓盁纰抽埌绀�;E—锠熼粌鑹茬墖鐙�姘熺⒊閳扮う;F—榛冭壊鏉挎煴鐙�姘熺⒊閳扮う
(2)绀﹀寲姝ｉ暦鍋夋櫠宸栧拰鐏垚纰抽吀宸栧舰鎴愪簬浜岀枈绱�(j矛)鏈湡(262.4~258.9Ma)銆傜嵅寰楁闀峰亯鏅跺窎206Pb/238U鍔犳瑠(qu谩n)骞冲潎骞撮健鐐�258.9±1.6Ma(n=27锛�2σ锛孧SWD=0.51;鍦�3-A);鐏垚纰抽吀宸栫殑鏂滈嫰鐭砋-Pb娓勾绲�(ji茅)鏋滅偤262.4±1.7Ma(n=12锛�95% conf.锛孧SWD=0.13;鍦�3-B)銆傞�欎簺骞撮健鑸囧敞鐪夊北澶х伀鎴愬窎鐪佸強鐩搁棞(gu膩n)閲╅垿纾侀惖绀︾殑褰㈡垚鏅備唬(~260Ma)涓�鑷淬��
(3)绀﹀寲姝ｉ暦鍋夋櫠宸栧叿鏈夌稖鍚堝埄鐢ㄧ█鍦�銆侀埉绀︾殑缍�(j墨ng)婵�(j矛)鍓嶆櫙銆�9浠惰剤鐙�—缍�(w菐ng)鑴堢媭绀﹀寲姝ｉ暦鍋夋櫠宸栨ǎ鍝佸惈绀︽�ф脯瑭︾祼(ji茅)鏋滈’绀篟EE鍚噺鐐�0.142%~0.333%锛岀暐浣庝簬绋�鍦熺う鐨勯倞鐣屽搧浣�(0.5%);Nb2O5鍚噺鐐�0.013%~0.142%锛屽凡閬�(d谩)鍒伴埉绀︾殑閭婄晫鍝佷綅(0.012%~0.015%)銆傚悓鏅�锛岄倓閲囧彇绱呮牸绀﹀崁(q奴)灏剧う妯ｅ搧閫�(j矛n)琛屽皪姣斿垎鏋�锛�4浠舵ǎ鍝佹脯瑭EE鍚噺鐐�0.031%~0.045%锛孨b2O5鍚噺鐐�0.009%~0.019%銆�
3.鎴愭灉鎰忕京
鏀�鏋濊姳浜岀枈绱�(j矛)姘熺⒊閳扮う鍖栧牽鎬ч洔宸栫殑棣栨鐧�(f膩)鐝�(xi脿n)锛屼笉鍚屼簬鍖楅儴鐨勫啎瀵�-寰锋槍鏂扮敓浠ｇ█鍦熺う甯讹紝涓嶅儏鎷撳浜嗘攢瑗块嚛閳﹂惖鐭冲ⅷ绀﹁硣婧愬熀鍦扮█鍦熺う鐨勬壘绀︽�濊矾鍜岃寖鍦嶏紝鑰屼笖浠ユ盁纰抽埌绀﹀寲绮楃矑姝ｉ暦宸�-姝ｉ暦鍋夋櫠宸栫偤涓荤殑鍫挎�ч洔宸栬剤缇ゅ唬娉涚櫦(f膩)鑲蹭簬閲╅垿纾侀惖绀�(鍖�)楂斾腑锛岄’绀哄嚭鏀�鏋濊姳閲╅垿纾侀惖绀﹀崁(q奴)璞愬瘜鐨勭█鍦熷拰閳う璩囨簮娼涘姏锛屽皣鎿�(ku貌)澶ф攢鏋濊姳閲╅垿纾侀惖绀︾殑缍滃悎鍒╃敤鍓嶆櫙;鍚屾檪灏嶄簬涓婃彋瀛愰櫢濉婅タ绶ｆ攢瑗胯璋风挵(hu谩n)澧冧笅鐨勭█鍦熸垚绀︿綔鐢ㄧ爺绌朵篃鍏锋湁閲嶈鐨勭瀛�(xu茅)鎰忕京銆�
鏀�鏋濊姳浜岀枈绱�(j矛)鐏垚纰抽吀宸栫殑棣栨鐧�(f膩)鐝�(xi脿n)锛屽畬鍠勪簡宄ㄧ湁灞卞ぇ鐏垚宸栫渷鑸囧牽鎬ц秴鍩烘�у窎鏈夐棞(gu膩n)纰抽吀宸栫殑瑷橀寗锛屽皪娣卞寲宄ㄧ湁灞卞湴骞旀煴瑾�(r猫n)璀�銆佹彮绀哄敞鐪夊北澶х伀鎴愬窎鐪佸窎婕挎紨鍖栭亷绋嬫湁閲嶈鐮旂┒鎰忕京銆備綔鐐虹暥(d膩ng)浠婂湅鍏�(n猫i)澶栫爺绌舵繁閮ㄧ⒊寰挵(hu谩n)鑸囧叏鐞冩埃鍊欒畩鍖栫殑鐔遍粸鍙婂墠绶�锛岀伀鎴愮⒊閰稿窎“宸栫煶鎺㈤嚌”鍏锋湁鍦扮悆娣遍儴纰冲惊鐠�(hu谩n)鍜屽彜姘ｅ�欒畩鍖栭亷绋嬬殑鎸囩ず鎰忕京銆�