Attributes {
    sampleID {
        String type "String";
    }
    station {
        String type "String";
    }
    layer_from {
        String type "Float32";
    }
    layer_to {
        String type "Float32";
    }
    species {
        String type "String";
    }
    d13C {
        String type "Float32";
    }
    d15N {
        String type "Float32";
    }
}