The phrase "axis trend" is correct and usable in written English.
It can be used in contexts related to data analysis, statistics, or graphical representations where trends are plotted along an axis.
Example: "The axis trend clearly indicates a significant increase in sales over the past year."
Alternatives: "trend line" or "directional trend".
The focal mechanism obtained here is nearly a strike-slip motion, with the compression axis trending NE-SW.
The tension axis trends ENE-WSW along the Gulf of Suez, the Gulf of Aqaba, and the Red Sea rift, while trending NNE-SSW for mostly inland earthquakes (Bosworth and Stecker, 1997; Abou Elenean, 2007).
The West Bokaro coalfield forms a broad syncline with its axis trending E W and it exhibits a completed sequence of lower Gondwana Formation, which rests uncomfortably on basement rocks.
The coseismic deformation field of LOS obtained from the ascending track data (Fig. 2a, c) presents a shape of a long flat oblate with the long axis trending to the NW with a maximal uplift and subsidence of 0.07 and 0.21 m, respectively.
Imanishi et al. (2012) applied the method of Michael (1984) to these 12 focal mechanisms and obtained a normal-faulting stress regime with a minimum principal stress axis trending NW SE and a stress ratio Φ = (σ2 − σ3)/(σ1 − σ3) = 0.6 0.7, where σ1, σ2, and σ3 are the maximum, intermediate, and minimum principal stress axes, respectively.
A strong synclinal fold traverses Eday and Shapinsay, the axis trending north-south.
The distribution of the P- and T-axes of the focal mechanism of the aftershocks in the cluster indicates that most of the aftershocks have a predominantly normal faulting mechanism where the P-axis trend is close to vertical and the T-axis trend is close to horizontal (Fig. 13(d)).
The F-net CMT solutions of the foreshock and mainshock in 2004 indicated reverse faults with the P-axis trending NS (see Fig. 8).
The focal mechanism indicated normal faulting with a large strike-slip component with the T-axis trending NNE-SSW and the P-axis nearly NW-SE, which is consistent with the tectonics of the region.
