1) ultramafic-mafic association (UMA)
超镁铁质岩-镁铁质岩组合(UMA)
2) mafic-ultramafic rocks
镁铁-超镁铁质岩
1.
Geochemical characteristics of mafic-ultramafic rocks and their geological significance in Hongqiling mine of Jilin;
吉林红旗岭镁铁-超镁铁质岩的地球化学特征及地质意义
2.
Both copper-nickel sulfide (CNS) deposit and vanadic titianomagnetite (VTM) deposit are related to mafic-ultramafic rocks and belong to the orthomagmatic mineral deposit, but they rarely coexist on one deposit.
铜镍硫化物矿床与钒钛磁铁矿矿床虽然同属与镁铁-超镁铁质岩有关的岩浆型矿床范畴,但在一般情况下,二者是不共生的。
3.
Cu-Ni sulphide deposit related to mafic-ultramafic rocks is the main type of copper, nickel,platinum group elements(PGE) deposits.
与镁铁-超镁铁质岩密切相关的铜镍硫化物矿床是铜、镍、铂族元素(PGE)资源的重要矿床类型。
3) mafic ultramafic rocks
超镁铁镁铁质岩
4) ultramafic rock
超镁铁质岩
1.
Abundances of REE in ultramafic rocks from Dalabute ophiolite are determined by preconcentration neutron activation analysis,contents of transition metal elements(TME) in them are measured by instrument neutron activation analysis.
用预浓集中子活化法测定了达拉布特蛇绿岩中超镁铁质岩中的稀土元素(REE),用仪器中子活化法测定了其中的过渡金属元素。
2.
According to a great amount of information on the magnesite deposit and long-term working experience in the study area, the author proposed that the origin of the magnesite deposit might have related to ultramafic rock.
在查阅大量的有关菱镁矿床成因的资料后,结合本人在该矿区长期工作所积累的经验,提出该菱镁矿的成因可能与超镁铁质岩有关。
3.
The spatial distribution of the Archean ultramafic rocks of Xiongershan area shows the characteristics of uneven zoning and various orientations with peridotite, pyroxinite, amphibolite as main rock types, altered strongly.
熊耳山地区太古宙超镁铁质岩在空间分布上具有不均一性、成带性和多方向性特征 ,岩石以橄榄岩、辉石岩、角闪石岩为主 ,蚀变强烈。
5) ultramafic rocks
超镁铁质岩
1.
Copper-nickel sulfide deposits of Jinchuan occurred in the ultramafic rocks.
金川超镁铁质岩是金川铜镍硫化物矿床的赋存岩体,采自金川镍矿 矿区露天矿第2期侵入岩体的样品其岩石类型主要为含二辉橄榄岩和二辉橄榄岩,见镍黄铁矿、磁黄铁矿、黄铁矿呈成条带状出现,表明其形成时低氧逸度的成岩环境。
2.
These Archean acidic intrusive bodies belong to the alaskite-trondhjemite suites (A-T suites),and ultramafic rocks in the Archean greenston belts belong to the pyroxenic komatiites.
绿岩带中的超镁铁质岩是含SiO_2稍高的辉岩质科马提岩。
6) mafic-ultramafic belt
镁铁-超镁质岩带
补充资料：铁质岩
| 铁质岩 ferruginous rock 一种富铁矿物的沉积岩。主要由赤铁矿、针铁矿、菱铁矿、磁铁矿、铁质绿泥石、黄铁矿等铁矿物和粘土、硅质、砂质等杂质组成。多呈黑色或灰色，具鲕状、豆状、肾状和结核状结构。按矿物成分可分为硫化铁质岩（主要矿物为黄铁矿、白铁矿等）、碳酸铁质岩（主要矿物为菱铁矿等）、氧化铁质岩（主要矿物为赤铁矿、褐铁矿等）和硅酸铁质岩（主要矿物为鲕绿泥石等）。铁含量达工业品位，且具一定储量规模，则构成铁矿床。中国铁质岩矿床形成于各个地质时期，如前寒武纪的鞍山式铁矿，古生代的宁乡式铁矿、山西式铁矿，中生代的淮南式铁矿等。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条