e):
    &#34;&#34;&#34;Function to define all intervals lower than thresh as bedrock

    Parameters
    ----------
    df : pandas.DataFrame
        Dataframe to classify
    top_col : str, default = &#39;TOP&#39;
        Name of column that contains the depth information, likely of the top of the well interval, by default &#39;TOP&#39;
    thresh : float, default = 550.0
        Depth (in units used in df[&#39;top_col&#39;]) below which all intervals will be classified as bedrock, by default 550.0.
    ve