DOI: 10.5281/zenodo.18734775
title: East Asian Prehistoric Human-Face Jade Form 23 (EANJ_FACE_23):
High-Resolution Digital Documentation of Morphology, Perforations, Surface Evolution, and Tool Traces

description: 1. Core Statement

1.1 This record contains high-resolution raw visual data of a jade object with a human-face configuration (Form ID: EANJ_FACE_23).

1.2 This dataset serves as the foundational research layer of the digital archiving project for this specimen, providing high-fidelity visual evidence to support morphological analysis, traceology, and materials science–related research.

1.3 The digital record of this object forms part of a continuously expanding dataset intended to provide a citable basis for future cross-object comparative studies. At the current stage, no comparative interpretation across samples is conducted.

 

2. Access and Use Guidelines

2.1 Access Restrictions:For reasons of data security and academic integrity, the high-resolution original files of this dataset are subject to restricted access.

2.2 Application Requirements:Applicants must submit a clearly defined research purpose and institutional affiliation via the Zenodo platform.

2.3 Usage Limitations:This dataset is strictly limited to academic research, visual documentation, and comparative analytical purposes. Without explicit authorization from the dataset publisher, any form of commercial use, non-academic dissemination, or reproduction and reuse beyond academic comparative objectives is strictly prohibited.

 

3. Dataset Composition

3.1 Overview Documentation:High-resolution images of the front and reverse views, documenting the overall proportions and geometric structure of the object.

3.2 Metric Reference:Images incorporating a metric scale for quantitative analysis.



Length: 6.4 cm

Width: 5.3 cm

Thickness: 0.6 cm

Weight: 33 g


3.3 Microscopic Evidence:High-magnification macro images documenting perforation morphology, microscopic weathering features, and observable manufacturing traces.

 

4. Image Inventory

The dataset includes the following high-resolution images:



Front view: Documenting facial configuration and overall proportionsEANJ_FACE_23_FRONT

Reverse view: Displaying rear contour morphologyEANJ_FACE_23_REVERSE

Scale view: Including a metric scale for dimensional referenceEANJ_FACE_23_WITH_SCALE

Front macro view: Documenting upper perforation morphologyEANJ_FACE_23_MIC_UNIF_FRONT

Reverse macro view: Documenting upper perforation morphologyEANJ_FACE_23_MIC_UNIF_REVERSE

Front macro view: Documenting frontal morphologyEANJ_FACE_23_MIC_FRONT_A

Front macro view: Documenting frontal morphologyEANJ_FACE_23_MIC_FRONT_B


 

5. Observed Morphological and Structural Features

5.1 Overall Form:The object presents a near-ovoid configuration with smoothly rounded and continuous edge contours. The curvature transitions between the top and bottom are gradual and natural, producing an overall flattened, plaque-like volumetric impression.

5.2 Frontal Facial Features:



Peripheral dotted motifs: A continuous ring of circular recessed dot motifs is distributed along the outer edge of the object, with relatively even spacing.

Eye structure: The eyes are expressed through two circular through-perforations. Externally, these are enclosed by incised linear frames forming a horizontally oriented teardrop-like outline. Dark brown deposits are present along the edges of the perforations.

Nasal feature: The nose is expressed by an isosceles triangular incised linear frame. The interior of the frame is not raised and maintains the same planar level as the surrounding facial surface.

Mouth region: Below the triangular nasal form, three horizontally aligned circular recessed dots are present, consistent in style with the peripheral motifs.

Upper perforation: A centrally positioned circular through-perforation is present at the top of the object. Clear spiral traces are visible along the inner wall of the perforation.


5.3 Reverse Features:



Perforation layout: The reverse clearly reveals the corresponding upper single perforation and the two eye perforations, totaling three through-perforations.

Surface condition: The reverse surface is flat and displays a predominantly pure white tonality. No additional artificially formed decorative surface structures are observed.


5.4 Material and Surface Condition:



Color characteristics: The object exhibits an overall pure white appearance, resembling plaster-like or deeply whitened mineral coloration.

Adhering material and weathering: Distinct dark brown deposits are present within incised grooves, circular recessed dots, and the interiors of the perforation channels.


 

6. Limitations, Observational Constraints, and Open Questions

6.1 Observational Constraints:Except for the upper through-perforation, the inner walls of perforations, peripheral circular recesses, and incised linear areas are obscured by adhered and infilled deposits, preventing effective observation of surface traces.

6.2 Open Questions:The positional significance of the expressive strategies employed for the eyes (through-perforations combined with teardrop-shaped outlines), the triangular representation of the nose, and the use of three circular recessed dots for the mouth within currently documented records.

 

7. Imaging and Processing

7.1 All images were captured using a full-frame camera equipped with a 90 mm macro lens, recorded in RAW format and converted to JPEG files (approximately 42 megapixels per image), with no localized retouching.

7.2 Photography was conducted under controlled lighting conditions with a neutral background to minimize environmental interference.

7.3 No physical treatment or surface intervention was applied to the object during the imaging process.

7.4 If any post-processing was performed, it was strictly limited to global exposure and white balance adjustments to accurately reflect the visual condition of the material.

 

8. Compliance and Due Diligence

8.1 The compilation and release of this dataset adhere to fundamental principles of academic data management.

8.2 Prior to digitization and publication, the dataset underwent internal review, including assessment of publication risks, usage boundaries, and alignment with academic standards, to ensure transparency, prudence, and procedural integrity.

8.3 This dataset is released solely as a non-interpretive collection of raw visual records and does not constitute any form of academic conclusion, cultural attribution, chronological determination, or institutional position.