Sentence examples for stage boundaries from inspiring English sources
Stage boundaries were construed to represent unusual extrinsic geologic events, with significant implications for faunal continuity.
Graptolites in particular are now used to define most of the new global Ordovician stage boundaries.
At intervals, a light swings around the stage boundaries, coming to rest, at random, on the face of an audience member.
We show a Milankovitch eccentricity climate zonation for the Givetian that is pinned to time-series analyses from outcrop samples from its upper (Givetian/Frasnian, France) and lower (Eifelian/Givetian, Morocco) stage boundaries.
We analysed a large dataset of Upper Triassic radiolarian occurrences in the Inuyama area7,20,21,22, to assess the magnitude of the extinction event caused by the middle Norian impact, and to compare this event with extinction events at other stage boundaries.
The ranges of the estimated durations are based on errors in the ages of geological stage boundaries (Ogg, 2012; Ogg and Hinnov, 2012) and uncertainties in the stratigraphic positions of the geological boundaries described by Hori (1990), Sugiyama (1997), Carter and Hori (2005), and Gröcke et al. (2011).
The acute distinction between the stages makes the staging unrealistic since the drastic modification in treatment based on a change of stage may be based on a slight shift around the stage boundary.
By analyzing the gas-solid interactions in each stage, boundary conditions for intra-particle diffusion were established and model equations obtained.
Samples were collected for magnetostratigraphic analysis from the Upper Cretaceous Straight Cliffs and Wahweap formations within Grand Staircase-Escalante National Monument, southern Utah, in an attempt to locate the C34n C33r and C33r C33n boundaries; the former approximates the Santonian Campanian Stage boundary.
At a certain stage, subgrain boundaries form the observed fragments in the initial austenite grains.
Sport, on an international stage, crosses boundaries and it becomes more than just two lots of 13 blokes playing".
