A model-independent, sequence stratigraphic approach is used to define bounding surfaces in the Navajo Sandstone in order to identify an architectural hierarchy of genetically related sedimentary packages and the surfaces that bound them across multiple scales of both eolian and non-eolian components of an erg system. Seven bounding surfaces and eight depositional units are defined, from small to large scale. A lamina-deviation surface bounds wedge- and tabular-shaped sets of laminae and/or laminasets, separating those that have different angle orientations on the dune slipface. A bed-deviation surface bounds a succession of beds (crossbeds) that lie at different angles or orientations to bedding above, below, or adjacent to it. A bedset-deviation surface is curved, inclined, and/or wavy and irregular that bounds bedsets and their internal stratification patterns; that is, bed-deviation surfaces, and lamina-deviation surfaces. A simple surface is gently inclined with or without small, concave or convex segments that bound beds and bedsets. A composite surface is horizontal with or without concave, curved, or irregular portions of that surface. A complex surface is laterally extensive (∼ 1–10+ km) that regionally bounds and truncates underlying conterminous and interfingered eolian and non-eolian strata. An amalgamated surface is a regionally extensive (∼ 10 to 100s km) mappable unconformity, merged unconformities, and their laterally equivalent conformable surface that can exhibit local to regional pedogenic modification, lags, and significant (meters to 10s m) paleotopographic relief. The genetically related sedimentary packages typically bounded by like or higher-rank surfaces are defined as laminae, laminasets, bed, bedsets, and simple, composite, complex, and amalgamated units. Field relationships of strata and surfaces are key to reconstructing the interactions between eolian and non-eolian deposits and the processes they represent at the local, regional, and basin scale. This classification scheme can be applied to erg-system strata to fully integrate changes in diverse facies within and between contiguous deposits.

中文翻译：

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定义风成和非风成沉积物内部和之间的边界面，下侏罗纪纳瓦霍砂岩，摩押地区，犹他州，美国：对细分 erg 系统地层的影响

一种独立于模型的层序地层学方法用于定义纳瓦霍砂岩中的边界面，以识别与成因相关的沉积包的建筑层次结构，以及跨越 erg 的风成和非风成成分的多个尺度限制它们的表面系统。定义了七个边界面和八个沉积单元，从小到大。层板偏差表面界定了楔形和板状的层板和/或层板组，将沙丘滑面上具有不同角度方向的层分开。床层偏差表面将一系列以不同角度或方向放置的床层（交叉床层）与其上方、下方或相邻的层理相结合。床位偏差面是弯曲的、倾斜的、和/或波浪形和不规则的边界床和它们的内部分层模式；即，床层偏差面和层板偏差面。一个简单的表面轻轻倾斜，有或没有小的、凹的或凸的部分，这些部分连接床和床。复合表面是水平的，有或没有该表面的凹面、弯曲或不规则部分。一个复杂的表面横向广泛（约 1-10 公里以上），区域性地界定和截断下伏的相邻和相互交错的风成地层和非风成地层。合并表面是区域性广泛（约 10 至 100 s km）可测绘的不整合面、合并的不整合面，以及它们横向等效的可贴合面，可以表现出局部到区域的成土改变、滞后和显着（米到 10 秒米）的古地形起伏。通常以相似或更高级别表面为界的成因相关沉积包被定义为层状、层状层、层、层层以及简单、复合、复杂和合并单元。地层和地表的现场关系是重建风成和非风成沉积物之间的相互作用以及它们在局部、区域和盆地尺度上所代表的过程的关键。这种分类方案可以应用于erg-system 地层，以充分整合相邻沉积物内部和之间不同相的变化。地层和地表的现场关系是重建风成和非风成沉积物之间的相互作用以及它们在局部、区域和盆地尺度上所代表的过程的关键。这种分类方案可以应用于erg-system 地层，以充分整合相邻沉积物内部和之间不同相的变化。地层和地表的现场关系是重建风成和非风成沉积物之间的相互作用以及它们在局部、区域和盆地尺度上所代表的过程的关键。这种分类方案可以应用于erg-system 地层，以充分整合相邻沉积物内部和之间不同相的变化。