Morefield Gem Mine - Mining of Minerals

People sometimes ask where we get our rock and do we truck it in from somewhere.  I point to the mine shaft and tell them, “right over there!” They are usually surprised that it is being mined on site.  Another question asked is, “How do you mine it? Do you go down there and dig it out?”  

The Morefield mine is an underground hard rock operation.  The pegmatite lays like a near vertical vein but in the case of pegmatite, a granite intrusive with no ore metals like lead, copper, zinc, gold or silver, it is called a dike.  Igneous sheet-like intrusions are called dikes if steeply inclined or called sills if the dip is low to flat.  The Morefield dike dips at about 80 degrees to the northwest and varies from 6 feet to 15 feet in the areas that have been mined.  To the southwest toward Butler’s Road, it thickens to as much as 30 feet wide and little is known about the dike below the immediate surface and nothing is known about the pegmatite at greater depths.  The U.S. Bureau of Mines drilled through the pegmatite in their deepest hole at 238 feet below the surface.

Our operation is a typical drill, blast, haul system but we are mining in a most basic manner with the least mechanized equipment.  In 19 years of mining, we have had a very good safety record with the exception of one serious accident relating to falling.  Our safety record has been aided by using simple methods.  It is pretty hard to hurt ones self with a shovel! It is hard to believe but we have moved almost 1926 tons with shovels.  That is roughly equal to 100 dump truck loads! 

Drilling is done with a Gardner Denver S58 airleg drill sometimes called a ’jackleg’.  Holes are drilled 6 feet deep in the face of a tunnel-like opening and vary from 1-3/8” to 1-1/2” for blastholes and 2” for holes creating a ‘free face’ to which other holes can break. (The ‘tunnel-like opening’ is really called a ‘drift’ in our case.  In mining terminology, tunnels pass through hills; adits pass into hills; drifts follow veins; and crosscuts cross geologic structure or serve as access drifts.)  Our drifts are about 8 feet high by 6 feet wide; we drill up to 35 holes six feet deep and use 1-3/4 cases of explosive, 42# each per 5 feet of advance.  We use both stick powder and ANFO prills what are blown into the holes with compressed air.  The photo shows a miner drilling the initial holes for a “burn cut” in a new face.  The object is to shoot loaded holes around 3-5 larger empty holes to collapse them and create a cylindrical hole which becomes the free face toward which all other holes break.

The loading of holes is done by hand.  Holes in the burn cut must be loaded fully.  Once we get an area opened with successive drilling and blasting, we can drill wider spaced holes and load them lightly to try and break the rock in larger pieces good for the collecting areas.  Some holes may be shot together with the same delay and other rows may be shot with successive delays giving time in milliseconds for the broken rock from the first holes to clear before additional holes detonate.  In the photograph, detonating cord can be seen connecting holes.  The detonating cord is initiated with a single electric detonator.  All employees leave the mine and are accounted for before blasting.  

Following blasting and allowing time for smoke to clear, the workplace is inspected and then it is washed down with a hose and then the heading is scaled or ‘barred down’ to remove loose rock from the roof (back) and walls (ribs).      

It is an unfortunate matter that blasting creates fines or sand and knowing how much explosive to use requires judging ever-changing conditions.  We start the burn cut in simple pegmatite off to one side of the pegmatite core and amazonite zone.  Everything in the burn cut is pulverized. We then work our way over into the rare mineral, mica, and amazonite zone shooting as lightly as we can.  It is during this part of the mining that we may drill into a cavity, a vug or “pocket”, hopefully with crystals.  When we hit a cavity, the drill lurches forward which is a telltale sign and yellow to red mud colors the drill water.  This is the gem miner’s dream; big pockets with lots of crystals!  The following photographs show opening two vugs on the 60 foot level northeast and southwest.

The removal of rock broken by blasting is called “mucking” Almost all of the rock mined from 1985 until summer 2001 was done with a shovel and wheelbarrow.  Then 18 inch gauge mine rail was installed so the shaft bucket could be lowered onto a flat car then pushed back to the face and the freshly broken rock.  This eliminated the wheelbarrow.

The most recent improvement in mucking is the installation of an air-powered two drum slusher that pulls a large scraper blade back and forth.  It rides up over the muck pile and then drags rock to a drop point. At the drop point, rock accumulates until it is drawn through a chute on the next level and directly into the shaft bucket.  This method is being used in the sill removal project between the 45 foot and 60 foot levels.

In all cases, the bucket is pushed or trammed to the shaft, the hoist cable is attached, hoist signals are given and the bucket is pulled to the surface.  At the surface, the bucket is stopped mid air, the gin pole boom is swung to the dump point and the load of fresh pegmatite is dumped onto the stockpile.

 

Sill Removal Project-45 Foot Level Northeast

The sill removal between the 45 foot northeast and the 60 foot level northeast is an interesting project.  This is an area of high grade amazonite, zinnwaldite mica, topaz, and rare minerals.  It is approximately 7 feet thick.  There are two possible outcomes.  The first would be to back fill the volume of the removed sill with concrete.  This would allow track to be re-install track and re-establish the 45 foot level for access.  Then the 60 foot level drift would be advanced under the new concrete sill and normal mining continued.  This method if mining is called underhand cut-and-fill.  The second method would be to leave the removed sill and the lower 60 foot level as an open stope.  A timber floor would be installed on the 45 foot level and the hanging wall of the dike bolted with resin and fiberglass rockbolts for ground support.  It would be possible then to see the amazonite/complex pegmatite from the roof of the 45 foot level to the floor of the 60 foot level, a height of 23 feet!  The two methods are shown in the cross section.

 

 

Shaft Bottom Rehabilitation and Examination of the 100 Foot Level

Preparatory work is also taking place during the fall of 2015 to examine and explore the 100 foot level.  This level of the mine has not been completely dewatered or explored since it was abandoned by the U.S. Bureau of Mines in 1949.  Water for the sluice boxes or flumes has come from this level since mining began again in 1985. Over the years of abandonment, rock and earth around the surface collar of the shaft has fallen in and the bottom of the shaft has been filled with as much as 20 feet of debris. This debris will have to be removed to below the floor of the 100 foot level.  The shaft was originally sunk to a depth 115 feet.

Pumps will be installed dewater the 100 foot level and to keep it dewatered.  Approximately 8500 gallons of ground water enter the mine over a 24 hour day.  All of the work in the shaft is wet and water from upper levels rains down the shaft. A sump pump will pump water from the floor into a 200 gallon holding tank where a booster bump will pump the water the 100 feet to the surface.

The walls of the 100 foot level and the shaft walls have been coated with a layer of brown iron oxide deposited by an iron bacteria making it impossible to see the minerals without making a fresh exposure. This is a bacterium that seems to derive its energy from converting ferrous iron to the ferric state.

Once the level is dewatered and 3 feet of mud is removed near the shaft, the level can be entered and inspected firstly for safety, loose rock, and the toe of the rock pile that now partially fills the Bureau of Mines stope.  Safety is paramount; the shaft at 100 feet down is like being in a gun barrel and any falling object becomes a projectile.


Morefield Gem Mine
2017. All rights reserved.

Contact: Sam or Sharon Dunaway

Address: 13400 Butlers Road - Amelia, Virginia 23002
Website: www.MorefieldGemMine.com

 

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Licensed under the BSD License. http://yuilibrary.com/license/ */ (function(){var e=YUI.Env;e._ready||(e._ready=function(){e.DOMReady=!0,e.remove(YUI.config.doc,"DOMContentLoaded",e._ready)},e.add(YUI.config.doc,"DOMContentLoaded",e._ready))})(),YUI.add("event-base",function(e,t){e.publish("domready",{fireOnce:!0,async:!0}),YUI.Env.DOMReady?e.fire("domready"):e.Do.before(function(){e.fire("domready")},YUI.Env,"_ready");var n=e.UA,r={},i={63232:38,63233:40,63234:37,63235:39,63276:33,63277:34,25:9,63272:46,63273:36,63275:35},s=function(t){if(!t)return t;try{t&&3==t.nodeType&&(t=t.parentNode)}catch(n){return null}return e.one(t)},o=function(e,t,n){this._event=e,this._currentTarget=t,this._wrapper=n||r,this.init()};e.extend(o,Object,{init:function(){var e=this._event,t=this._wrapper.overrides,r=e.pageX,o=e.pageY,u,a=this._currentTarget;this.altKey=e.altKey,this.ctrlKey=e.ctrlKey,this.metaKey=e.metaKey,this.shiftKey=e.shiftKey,this.type=t&&t.type||e.type,this.clientX=e.clientX,this.clientY=e.clientY,this.pageX=r,this.pageY=o,u=e.keyCode||e.charCode,n.webkit&&u in i&&(u=i[u]),this.keyCode=u,this.charCode=u,this.which=e.which||e.charCode||u,this.button=this.which,this.target=s(e.target),this.currentTarget=s(a),this.relatedTarget=s(e.relatedTarget);if(e.type=="mousewheel"||e.type=="DOMMouseScroll")this.wheelDelta=e.detail?e.detail*-1:Math.round(e.wheelDelta/80)||(e.wheelDelta<0?-1:1);this._touch&&this._touch(e,a,this._wrapper)},stopPropagation:function(){this._event.stopPropagation(),this._wrapper.stopped=1,this.stopped=1},stopImmediatePropagation:function(){var e=this._event;e.stopImmediatePropagation?e.stopImmediatePropagation():this.stopPropagation(),this._wrapper.stopped=2,this.stopped=2},preventDefault:function(e){var t=this._event;t.preventDefault(),t.returnValue=e||!1,this._wrapper.prevented=1,this.prevented=1},halt:function(e){e?this.stopImmediatePropagation():this.stopPropagation(),this.preventDefault()}}),o.resolve=s,e.DOM2EventFacade=o,e.DOMEventFacade=o,function(){e.Env.evt.dom_wrappers={},e.Env.evt.dom_map={};var t=e.Env.evt,n=e.config,r=n.win,i=YUI.Env.add,s=YUI.Env.remove,o=function(){YUI.Env.windowLoaded=!0,e.Event._load(),s(r,"load",o)},u=function(){e.Event._unload()},a="domready",f="~yui|2|compat~",l=function(t){try{return t&&typeof t!="string"&&e.Lang.isNumber(t.length)&&!t.tagName&&!e.DOM.isWindow(t)}catch(n){return!1}},c=e.CustomEvent.prototype._delete,h=function(t){var n=c.apply(this,arguments);return this.hasSubs()||e.Event._clean(this),n},p=function(){var n=!1,o=0,c=[],d=t.dom_wrappers,v=null,m=t.dom_map;return{POLL_RETRYS:1e3,POLL_INTERVAL:40,lastError:null,_interval:null,_dri:null,DOMReady:!1,startInterval:function(){p._interval||(p._interval=setInterval(p._poll,p.POLL_INTERVAL))},onAvailable:function(t,n,r,i,s,u){var a=e.Array(t),f,l;for(f=0;f4?t.slice(4):null),c&&u.fire(),h):!1},detach:function(t,n,r,i){var s=e.Array(arguments,0,!0),o,u,a,c,h,v;s[s.length-1]===f&&(o=!0);if(t&&t.detach)return t.detach();typeof r=="string"&&(o?r=e.DOM.byId(r):(r=e.Selector.query(r),u=r.length,u<1?r=null:u==1&&(r=r[0])));if(!r)return!1;if(r.detach)return s.splice(2,1),r.detach.apply(r,s);if(l(r)){a=!0;for(c=0,u=r.length;c0),u=[],a=function(t,n){var r,i=n.override;try{n.compat?(n.override?i===!0?r=n.obj:r=i:r=t,n.fn.call(r,n.obj)):(r=n.obj||e.one(t),n.fn.apply(r,e.Lang.isArray(i)?i:[]))}catch(s){}};for(t=0,r=c.length;t4?e.Array(arguments,4,!0):null;return e.Event.onAvailable.call(e.Event,r,n,i,s)}},e.Env.evt.plugins.contentready={on:function(t,n,r,i){var s=arguments.length>4?e.Array(arguments,4,!0):null;return e.Event.onContentReady.call(e.Event,r,n,i,s)}}},"3.12.0",{requires:["event-custom-base"]}); /* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add("event-delegate",function(e,t){function f(t,r,u,l){var c=n(arguments,0,!0),h=i(u)?u:null,p,d,v,m,g,y,b,w,E;if(s(t)){w=[];if(o(t))for(y=0,b=t.length;y1&&(g=p.shift(),c[0]=t=p.shift()),d=e.Node.DOM_EVENTS[t],s(d)&&d.delegate&&(E=d.delegate.apply(d,arguments));if(!E){if(!t||!r||!u||!l)return;v=h?e.Selector.query(h,null,!0):u,!v&&i(u)&&(E=e.on("available",function(){e.mix(E,e.delegate.apply(e,c),!0)},u)),!E&&v&&(c.splice(2,2,v),E=e.Event._attach(c,{facade:!1}),E.sub.filter=l,E.sub._notify=f.notifySub)}return E&&g&&(m=a[g]||(a[g]={}),m=m[t]||(m[t]=[]),m.push(E)),E}var n=e.Array,r=e.Lang,i=r.isString,s=r.isObject,o=r.isArray,u=e.Selector.test,a=e.Env.evt.handles;f.notifySub=function(t,r,i){r=r.slice(),this.args&&r.push.apply(r,this.args);var s=f._applyFilter(this.filter,r,i),o,u,a,l;if(s){s=n(s),o=r[0]=new e.DOMEventFacade(r[0],i.el,i),o.container=e.one(i.el);for(u=0,a=s.length;u=0;o--)s=n[o],a=s._UNPLUG,a&&e.mix(i,a,!0),u=s._PLUG,u&&e.mix(r,u,!0);for(f in r)r.hasOwnProperty(f)&&(i[f]||this.plug(r[f]));t&&t.plugins&&this.plug(t.plugins)},n.plug=function(t,n,i){var s,o,u,a;if(t!==e.Base){t._PLUG=t._PLUG||{},r.isArray(n)||(i&&(n={fn:n,cfg:i}),n=[n]);for(o=0,u=n.length;o=4.2)i[0]+=s,i[1]+=o}else i=d._getOffset(r)}return i}:function(t){var n=null,s,o,u,a,f;if(t)if(d.inDoc(t)){n=[t.offsetLeft,t.offsetTop],s=t.ownerDocument,o=t,u=e.UA.gecko||e.UA.webkit>519?!0:!1;while(o=o.offsetParent)n[0]+=o.offsetLeft,n[1]+=o.offsetTop,u&&(n=d._calcBorders(o,n));if(d.getStyle(t,r)!=i){o=t;while(o=o.parentNode){a=o.scrollTop,f=o.scrollLeft,e.UA.gecko&&d.getStyle(o,"overflow")!=="visible"&&(n=d._calcBorders(o,n));if(a||f)n[0]-=f,n[1]-=a}n[0]+=d.docScrollX(t,s),n[1]+=d.docScrollY(t,s)}else n[0]+=d.docScrollX(t,s),n[1]+=d.docScrollY(t,s)}else n=d._getOffset(t);return n}}(),getScrollbarWidth:e.cached(function(){var t=e.config.doc,n=t.createElement("div"),r=t.getElementsByTagName("body")[0],i=.1;return r&&(n.style.cssText="position:absolute;visibility:hidden;overflow:scroll;width:20px;",n.appendChild(t.createElement("p")).style.height="1px",r.insertBefore(n,r.firstChild),i=n.offsetWidth-n.clientWidth,r.removeChild(n)),i},null,.1),getX:function(e){return d.getXY(e)[0]},getY:function(e){return d.getXY(e)[1]},setXY:function(e,t,n){var i=d.setStyle,a,f,l,c;e&&t&&(a=d.getStyle(e,r),f=d._getOffset(e),a=="static"&&(a=s,i(e,r,a)),c=d.getXY(e),t[0]!==null&&i(e,o,t[0]-c[0]+f[0]+"px"),t[1]!==null&&i(e,u,t[1]-c[1]+f[1]+"px"),n||(l=d.getXY(e),(l[0]!==t[0]||l[1]!==t[1])&&d.setXY(e,t,!0)))},setX:function(e,t){return d.setXY(e,[t,null])},setY:function(e,t){return d.setXY(e,[null,t])},swapXY:function(e,t){var n=d.getXY(e);d.setXY(e,d.getXY(t)),d.setXY(t,n)},_calcBorders:function(t,n){var r=parseInt(d[p](t,c),10)||0,i=parseInt(d[p](t,l),10)||0;return e.UA.gecko&&v.test(t.tagName)&&(r=0,i=0),n[0]+=i,n[1]+=r,n},_getWinSize:function(r,i){i=i||r?d._getDoc(r):e.config.doc;var s=i.defaultView||i.parentWindow,o=i[n],u=s.innerHeight,a=s.innerWidth,f=i[t];return o&&!e.UA.opera&&(o!="CSS1Compat"&&(f=i.body),u=f.clientHeight,a=f.clientWidth),{height:u,width:a}},_getDocSize:function(r){var i=r?d._getDoc(r):e.config.doc,s=i[t];return i[n]!="CSS1Compat"&&(s=i.body),{height:s.scrollHeight,width:s.scrollWidth}}})})(e),function(e){var t="top",n="right",r="bottom",i="left",s=function(e,s){var o=Math.max(e[t],s[t]),u=Math.min(e[n],s[n]),a=Math.min(e[r],s[r]),f=Math.max(e[i],s[i]),l={};return l[t]=o,l[n]=u,l[r]=a,l[i]=f,l},o=e.DOM;e.mix(o,{region:function(e){var t=o.getXY(e),n=!1;return e&&t&&(n=o._getRegion(t[1],t[0]+e.offsetWidth,t[1]+e.offsetHeight,t[0])),n},intersect:function(u,a,f){var l=f||o.region(u),c={},h=a,p;if(h.tagName)c=o.region(h);else{if(!e.Lang.isObject(a))return!1;c=a}return p=s(c,l),{top:p[t],right:p[n],bottom:p[r],left:p[i],area:(p[r]-p[t])*(p[n]-p[i]),yoff:p[r]-p[t],xoff:p[n]-p[i],inRegion:o.inRegion(u,a,!1,f)}},inRegion:function(u,a,f,l){var c={},h=l||o.region(u),p=a,d;if(p.tagName)c=o.region(p);else{if(!e.Lang.isObject(a))return!1;c=a}return f?h[i]>=c[i]&&h[n]<=c[n]&&h[t]>=c[t]&&h[r]<=c[r]:(d=s(c,h),d[r]>=d[t]&&d[n]>=d[i]?!0:!1)},inViewportRegion:function(e,t,n){return o.inRegion(e,o.viewportRegion(e),t,n)},_getRegion:function(e,s,o,u){var a={};return a[t]=a[1]=e,a[i]=a[0]=u,a[r]=o,a[n]=s,a.width=a[n]-a[i],a.height=a[r]-a[t],a},viewportRegion:function(t){t=t||e.config.doc.documentElement;var n=!1,r,i;return t&&(r=o.docScrollX(t),i=o.docScrollY(t),n=o._getRegion(i,o.winWidth(t)+r,i+o.winHeight(t),r)),n}})}(e)},"3.12.0",{requires:["dom-base","dom-style"]}); /* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add("node-screen",function(e,t){e.each(["winWidth","winHeight","docWidth","docHeight","docScrollX","docScrollY"],function(t){e.Node.ATTRS[t]={getter:function(){var n=Array.prototype.slice.call(arguments);return n.unshift(e.Node.getDOMNode(this)),e.DOM[t].apply(this,n)}}}),e.Node.ATTRS.scrollLeft={getter:function(){var t=e.Node.getDOMNode(this);return"scrollLeft"in t?t.scrollLeft:e.DOM.docScrollX(t)},setter:function(t){var n=e.Node.getDOMNode(this);n&&("scrollLeft"in n?n.scrollLeft=t:(n.document||n.nodeType===9)&&e.DOM._getWin(n).scrollTo(t,e.DOM.docScrollY(n)))}},e.Node.ATTRS.scrollTop={getter:function(){var t=e.Node.getDOMNode(this);return"scrollTop"in t?t.scrollTop:e.DOM.docScrollY(t)},setter:function(t){var n=e.Node.getDOMNode(this);n&&("scrollTop"in n?n.scrollTop=t:(n.document||n.nodeType===9)&&e.DOM._getWin(n).scrollTo(e.DOM.docScrollX(n),t))}},e.Node.importMethod(e.DOM,["getXY","setXY","getX","setX","getY","setY","swapXY"]),e.Node.ATTRS.region={getter:function(){var t=this.getDOMNode(),n;return t&&!t.tagName&&t.nodeType===9&&(t=t.documentElement),e.DOM.isWindow(t)?n=e.DOM.viewportRegion(t):n=e.DOM.region(t),n}},e.Node.ATTRS.viewportRegion={getter:function(){return e.DOM.viewportRegion(e.Node.getDOMNode(this))}},e.Node.importMethod(e.DOM,"inViewportRegion"),e.Node.prototype.intersect=function(t,n){var r=e.Node.getDOMNode(this);return e.instanceOf(t,e.Node)&&(t=e.Node.getDOMNode(t)),e.DOM.intersect(r,t,n)},e.Node.prototype.inRegion=function(t,n,r){var i=e.Node.getDOMNode(this);return e.instanceOf(t,e.Node)&&(t=e.Node.getDOMNode(t)),e.DOM.inRegion(i,t,n,r)}},"3.12.0",{requires:["dom-screen","node-base"]}); /* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add("node-style",function(e,t){(function(e){e.mix(e.Node.prototype,{setStyle:function(t,n){return e.DOM.setStyle(this._node,t,n),this},setStyles:function(t){return e.DOM.setStyles(this._node,t),this},getStyle:function(t){return e.DOM.getStyle(this._node,t)},getComputedStyle:function(t){return e.DOM.getComputedStyle(this._node,t)}}),e.NodeList.importMethod(e.Node.prototype,["getStyle","getComputedStyle","setStyle","setStyles"])})(e)},"3.12.0",{requires:["dom-style","node-base"]}); /* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add("event-custom-complex",function(e,t){var n,r,i=e.Object,s,o={},u=e.CustomEvent.prototype,a=e.EventTarget.prototype,f=function(e,t){var n;for(n in t)r.hasOwnProperty(n)||(e[n]=t[n])};e.EventFacade=function(e,t){e||(e=o),this._event=e,this.details=e.details,this.type=e.type,this._type=e.type,this.target=e.target,this.currentTarget=t,this.relatedTarget=e.relatedTarget},e.mix(e.EventFacade.prototype,{stopPropagation:function(){this._event.stopPropagation(),this.stopped=1},stopImmediatePropagation:function(){this._event.stopImmediatePropagation(),this.stopped=2},preventDefault:function(){this._event.preventDefault(),this.prevented=1},halt:function(e){this._event.halt(e),this.prevented=1,this.stopped=e?2:1}}),u.fireComplex=function(t){var n,r,i,s,o,u=!0,a,f,l,c,h,p,d,v,m,g=this,y=g.host||g,b,w,E=g.stack,S=y._yuievt,x;if(E&&g.queuable&&g.type!==E.next.type)return E.queue||(E.queue=[]),E.queue.push([g,t]),!0;x=g.hasSubs()||S.hasTargets||g.broadcast,g.target=g.target||y,g.currentTarget=y,g.details=t.concat();if(x){n=E||{id:g.id,next:g,silent:g.silent,stopped:0,prevented:0,bubbling:null,type:g.type,defaultTargetOnly:g.defaultTargetOnly},f=g.getSubs(),l=f[0],c=f[1],g.stopped=g.type!==n.type?0:n.stopped,g.prevented=g.type!==n.type?0:n.prevented,g.stoppedFn&&(a=new e.EventTarget({fireOnce:!0,context:y}),g.events=a,a.on("stopped",g.stoppedFn)),g._facade=null,r=g._createFacade(t),l&&g._procSubs(l,t,r),g.bubbles&&y.bubble&&!g.stopped&&(w=n.bubbling,n.bubbling=g.type,n.type!==g.type&&(n.stopped=0,n.prevented=0),u=y.bubble(g,t,null,n),g.stopped=Math.max(g.stopped,n.stopped),g.prevented=Math.max(g.prevented,n.prevented),n.bubbling=w),d=g.prevented,d?(v=g.preventedFn,v&&v.apply(y,t)):(m=g.defaultFn,m&&(!g.defaultTargetOnly&&!n.defaultTargetOnly||y===r.target)&&m.apply(y,t)),g.broadcast&&g._broadcast(t);if(c&&!g.prevented&&g.stopped<2){h=n.afterQueue;if(n.id===g.id||g.type!==S.bubbling){g._procSubs(c,t,r);if(h)while(b=h.last())b()}else p=c,n.execDefaultCnt&&(p=e.merge(p),e.each(p,function(e){e.postponed=!0})),h||(n.afterQueue=new e.Queue),n.afterQueue.add(function(){g._procSubs(p,t,r)})}g.target=null;if(n.id===g.id){s=n.queue;if(s)while(s.length)i=s.pop(),o=i[0],n.next=o,o._fire(i[1]);g.stack=null}u=!g.stopped,g.type!==S.bubbling&&(n.stopped=0,n.prevented=0,g.stopped=0,g.prevented=0)}else m=g.defaultFn,m&&(r=g._createFacade(t),(!g.defaultTargetOnly||y===r.target)&&m.apply(y,t));return g._facade=null,u},u._hasPotentialSubscribers=function(){return this.hasSubs()||this.host._yuievt.hasTargets||this.broadcast},u._createFacade=u._getFacade=function(t){var n=this.details,r=n&&n[0],i=r&&typeof r=="object",s=this._facade;return s||(s=new e.EventFacade(this,this.currentTarget)),i?(f(s,r),r.type&&(s.type=r.type),t&&(t[0]=s)):t&&t.unshift(s),s.details=this.details,s.target=this.originalTarget||this.target,s.currentTarget=this.currentTarget,s.stopped=0,s.prevented=0,this._facade=s,this._facade},u._addFacadeToArgs=function(e){var t=e[0];t&&t.halt&&t.stopImmediatePropagation&&t.stopPropagation&&t._event||this._createFacade(e)},u.stopPropagation=function(){this.stopped=1,this.stack&&(this.stack.stopped=1),this.events&&this.events.fire("stopped",this)},u.stopImmediatePropagation=function(){this.stopped=2,this.stack&&(this.stack.stopped=2),this.events&&this.events.fire("stopped",this)},u.preventDefault=function(){this.preventable&&(this.prevented=1,this.stack&&(this.stack.prevented=1))},u.halt=function(e){e?this.stopImmediatePropagation():this.stopPropagation(),this.preventDefault()},a.addTarget=function(t){var n=this._yuievt;n.targets||(n.targets={}),n.targets[e.stamp(t)]=t,n.hasTargets=!0},a.getTargets=function(){var e=this._yuievt.targets;return e?i.values(e):[]},a.removeTarget=function(t){var n=this._yuievt.targets;n&&(delete n[e.stamp(t,!0)],i.size(n)===0&&(this._yuievt.hasTargets=!1))},a.bubble=function(e,t,n,r){var i=this._yuievt.targets,s=!0,o,u,a,f,l,c=e&&e.type,h=n||e&&e.target||this,p;if(!e||!e.stopped&&i)for(a in i)if(i.hasOwnProperty(a)){o=i[a],u=o._yuievt.events[c],o._hasSiblings&&(l=o.getSibling(c,u)),l&&!u&&(u=o.publish(c)),p=o._yuievt.bubbling,o._yuievt.bubbling=c;if(!u)o._yuievt.hasTargets&&o.bubble(e,t,h,r);else{l&&(u.sibling=l),u.target=h,u.originalTarget=h,u.currentTarget=o,f=u.broadcast,u.broadcast=!1,u.emitFacade=!0,u.stack=r,s=s&&u.fire.apply(u,t||e.details||[]),u.broadcast=f,u.originalTarget=null;if(u.stopped)break}o._yuievt.bubbling=p}return s},a._hasPotentialSubscribers=function(e){var t=this._yuievt,n=t.events[e];return n?n.hasSubs()||t.hasTargets||n.broadcast:!1},n=new e.EventFacade,r={};for(s in n)r[s]=!0},"3.12.0",{requires:["event-custom-base"]}); /* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add("event-synthetic",function(e,t){function c(e,t){this.handle=e,this.emitFacade=t}function h(e,t,n){this.handles=[],this.el=e,this.key=n,this.domkey=t}function p(){this._init.apply(this,arguments)}var n=e.CustomEvent,r=e.Env.evt.dom_map,i=e.Array,s=e.Lang,o=s.isObject,u=s.isString,a=s.isArray,f=e.Selector.query,l=function(){};c.prototype.fire=function(t){var n=i(arguments,0,!0),r=this.handle,s=r.evt,u=r.sub,a=u.context,f=u.filter,l=t||{},c;if(this.emitFacade){if(!t||!t.preventDefault)l=s._getFacade(),o(t)&&!t.preventDefault?(e.mix(l,t,!0),n[0]=l):n.unshift(l);l.type=s.type,l.details=n.slice(),f&&(l.container=s.host)}else f&&o(t)&&t.currentTarget&&n.shift();return u.context=a||l.currentTarget||s.host,c=s.fire.apply(s,n),t.prevented&&s.preventedFn&&s.preventedFn.apply(s,n),t.stopped&&s.stoppedFn&&s.stoppedFn.apply(s,n),u.context=a,c},h.prototype={constructor:h,type:"_synth",fn:l,capture:!1,register:function(e){e.evt.registry=this,this.handles.push(e)},unregister:function(t){var n=this.handles,i=r[this.domkey],s;for(s=n.length-1;s>=0;--s)if(n[s].sub===t){n.splice(s,1);break}n.length||(delete i[this.key],e.Object.size(i)||delete r[this.domkey])},detachAll:function(){var e=this.handles,t=e.length;while(--t>=0)e[t].detach()}},e.mix(p,{Notifier:c,SynthRegistry:h,getRegistry:function(t,n,i){var s=t._node,o=e.stamp(s),u="event:"+o+n+"_synth",a=r[o];return i&&(a||(a=r[o]={}),a[u]||(a[u]=new h(s,o,u))),a&&a[u]||null},_deleteSub:function(e){if(e&&e.fn){var t=this.eventDef,r=e.filter?"detachDelegate":"detach";this._subscribers=[],n.keepDeprecatedSubs&&(this.subscribers={}),t[r](e.node,e,this.notifier,e.filter),this.registry.unregister(e),delete e.fn,delete e.node,delete e.context}},prototype:{constructor:p,_init:function(){var e=this.publishConfig||(this.publishConfig={});this.emitFacade="emitFacade"in e?e.emitFacade:!0,e.emitFacade=!1},processArgs:l,on:l,detach:l,delegate:l,detachDelegate:l,_on:function(t,n){var r=[],s=t.slice(),o=this.processArgs(t,n),a=t[2],l=n?"delegate":"on",c,h;return c=u(a)?f(a):i(a||e.one(e.config.win)),!c.length&&u(a)?(h=e.on("available",function(){e.mix(h,e[l].apply(e,s),!0)},a),h):(e.Array.each(c,function(i){var s=t.slice(),u;i=e.one(i),i&&(n&&(u=s.splice(3,1)[0]),s.splice(0,4,s[1],s[3]),(!this.preventDups||!this.getSubs(i,t,null,!0))&&r.push(this._subscribe(i,l,s,o,u)))},this),r.length===1?r[0]:new e.EventHandle(r))},_subscribe:function(t,n,r,i,s){var o=new e.CustomEvent(this.type,this.publishConfig),u=o.on.apply(o,r),a=new c(u,this.emitFacade),f=p.getRegistry(t,this.type,!0),l=u.sub;return l.node=t,l.filter=s,i&&this.applyArgExtras(i,l),e.mix(o,{eventDef:this,notifier:a,host:t,currentTarget:t,target:t,el:t._node,_delete:p._deleteSub},!0),u.notifier=a,f.register(u),this[n](t,l,a,s),u},applyArgExtras:function(e,t){t._extra=e},_detach:function(t){var n=t[2],r=u(n)?f(n):i(n),s,o,a,l,c;t.splice(2,1);for(o=0,a=r.length;o=0;--c)l[c].detach()}}},getSubs:function(e,t,n,r){var i=p.getRegistry(e,this.type),s=[],o,u,a,f;if(i){o=i.handles,n||(n=this.subMatch);for(u=0,a=o.length;u0){var o=t===!1?function(e){return e}:l,a=e.split(/;\s/g),f=i,c=i,h=i;for(var p=0,d=a.length;p=0;--u){n=e[u];for(t in n)n.hasOwnProperty(t)&&(s=d({},n[t],f),o=null,t.indexOf(i)!==-1&&(o=t.split(i),t=o.shift()),l=c[t],o&&l&&l.value?(r=c._subAttrs,r||(r=c._subAttrs={}),r[t]||(r[t]={}),r[t][o.join(i)]={value:s.value,path:o}):o||(l?(l.valueFn&&a in s&&(l.valueFn=null),d(l,s,f)):c[t]=s))}return c},_initHierarchy:function(e){var t=this._lazyAddAttrs,n,r,i,s,o,a,f,l,c,h,p,d=[],v=this._getClasses(),m=this._getAttrCfgs(),g=v.length-1;for(o=g;o>=0;o--){n=v[o],r=n.prototype,h=n._yuibuild&&n._yuibuild.exts,r.hasOwnProperty(u)&&(d[d.length]=r.initializer);if(h)for(a=0,f=h.length;a=0;--a)if(r[a]===e)throw new Error("QueryString.stringify. Cyclical reference");r.push(e),c=[],o=s?s+"[":"",u=s?"]":"";for(a in e)e.hasOwnProperty(a)&&(l=o+a+u,c.push(n.stringify(e[a],t,l)));return r.pop(),c=c.join(h),!c&&s?s+"=":c}},"3.12.0",{requires:["yui-base"]}); /* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add("json-parse",function(e,t){var n=e.config.global.JSON;e.namespace("JSON").parse=function(e,t,r){return n.parse(typeof e=="string"?e:e+"",t,r)}},"3.12.0",{requires:["yui-base"]}); /* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add("json-stringify",function(e,t){var n=":",r=e.config.global.JSON;e.mix(e.namespace("JSON"),{dateToString:function(e){function t(e){return e<10?"0"+e:e}return e.getUTCFullYear()+"-"+t(e.getUTCMonth()+1)+"-"+t(e.getUTCDate())+"T"+t(e.getUTCHours())+n+t(e.getUTCMinutes())+n+t(e.getUTCSeconds())+"Z"},stringify:function(){return r.stringify.apply(r,arguments)},charCacheThreshold:100})},"3.12.0",{requires:["yui-base"]}); /* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add("classnamemanager",function(e,t){var n="classNamePrefix",r="classNameDelimiter",i=e.config;i[n]=i[n]||"yui3",i[r]=i[r]||"-",e.ClassNameManager=function(){var t=i[n],s=i[r];return{getClassName:e.cached(function(){var n=e.Array(arguments);return n[n.length-1]!==!0?n.unshift(t):n.pop(),n.join(s)})}}()},"3.12.0",{requires:["yui-base"]}); /* YUI 3.12.0 (build 8655935) Copyright 2013 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add("intl",function(e,t){var n={},r="yuiRootLang",i="yuiActiveLang",s=[];e.mix(e.namespace("Intl"),{_mod:function(e){return n[e]||(n[e]={}),n[e]},setLang:function(e,t){var n=this._mod(e),s=n[i],o=!!n[t];return o&&t!==s&&(n[i]=t,this.fire("intl:langChange",{module:e,prevVal:s,newVal:t===r?"":t})),o},getLang:function(e){var t=this._mod(e)[i];return t===r?"":t},add:function(e,t,n){t=t||r,this._mod(e)[t]=n,this.setLang(e,t)},get:function(t,n,r){var s=this._mod(t),o;return r=r||s[i],o=s[r]||{},n?o[n]:e.merge(o)},getAvailableLangs:function(t){var n=e.Env._loader,r=n&&n.moduleInfo[t],i=r&&r.lang;return i?i.concat():s}}),e.augment(e.Intl,e.EventTarget),e.Intl.publish("intl:langChange",{emitFacade:!0})},"3.12.0",{requires:["intl-base","event-custom"]}); window.Modernizr=function(e,t,n){function k(e){f.cssText=e}function L(e,t){return k(h.join(e+";")+(t||""))}function A(e,t){return typeof e===t}function O(e,t){return!!~(""+e).indexOf(t)}function M(e,t){for(var r in e){var i=e[r];if(!O(i,"-")&&f[i]!==n)return t=="pfx"?i:!0}return!1}function _(e,t,r){for(var i in e){var s=t[e[i]];if(s!==n)return r===!1?e[i]:A(s,"function")?s.bind(r||t):s}return!1}function D(e,t,n){var r=e.charAt(0).toUpperCase()+e.slice(1),i=(e+" "+d.join(r+" ")+r).split(" ");return A(t,"string")||A(t,"undefined")?M(i,t):(i=(e+" "+v.join(r+" ")+r).split(" "),_(i,t,n))}var r="2.8.3",i={},s=!0,o=t.documentElement,u="modernizr",a=t.createElement(u),f=a.style,l,c={}.toString,h=" -webkit- -moz- -o- -ms- ".spl