地质文献中北北西之类术语的意思这种术语源于对罗盘的使用，用来表明构造走向，按顺时针方向计算，正北为0 度，正东为90 度，其余角度以此类推罗盘方位表罗盘方位全称缩写中文名又名方位角1Nor thN北北0.00°2North by eastNbE北微东11.25°3North—northeastNNE东北偏北北北东22.50°4Northeast bynor thNEbN东北微北33.75°5NortheastNE东北北东45.00°6Northeast byeas tNEbE东北微 东56.25°7East-northeastENE东北偏 东东北东67.50°8East by northEbN东微北78.75°9Eas tE东东90.00°10East by southEbS东微南101.25°11East-southeastESE东南偏 东东南东112.50°12Southeast byeas tSEbE东南微 东123.75°13SoutheastSE东南南东135.00°14Southeast bysou thSEbS东南微 南146.25°15South-southeastSSE东南偏 南南南东157.50°16South by eastSbE南微东168.75°17Sou thS南南180.00°18South by westSbW南微西191.25°19South-southwestSSW西南偏 南南南西202.50°20Southwest bysou thSWbS西南微 南213.75°21SouthwestSW西南南西225.00°22Southwest bywes tSWbW西南微 西236.25°23West—southwestWSW西南偏 西西南西247.50°24West by southWbS西微南258.75°25Wes tW西西270.00°26West by northWbN西微北281.25°27West—northwestWNW西北偏西西北西292.50°28Northwest bywes tNWbW西北微西303.75°29NorthwestNW西北北西315.00°30Northwest bynor thNWbN西北微北326.25°31North—northwestNNW西北偏北北北西337.50°32North by westNbW北微西348.75°从表中可看出，中文名和又名的关系是：将“又名”倒着念并在最后一个字前加入一个偏字，就可以得到中文名，这样就接近于日常的表达了。